diff --git a/src/gui/dataList.cpp b/src/gui/dataList.cpp
index 81ceeb2c1..455bf794d 100644
--- a/src/gui/dataList.cpp
+++ b/src/gui/dataList.cpp
@@ -47,6 +47,9 @@ void FurnaceGUI::drawInsList(bool asChild) {
     if (ImGui::Button(ICON_FA_PLUS "##InsAdd")) {
       if (!settings.unifiedDataView) doAction(GUI_ACTION_INS_LIST_ADD);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Add");
+    }
     if (settings.unifiedDataView) {
       if (ImGui::BeginPopupContextItem("UnifiedAdd",ImGuiMouseButton_Left)) {
         if (ImGui::MenuItem("instrument")) {
@@ -70,6 +73,9 @@ void FurnaceGUI::drawInsList(bool asChild) {
     if (ImGui::Button(ICON_FA_FILES_O "##InsClone")) {
       if (!settings.unifiedDataView) doAction(GUI_ACTION_INS_LIST_DUPLICATE);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Duplicate");
+    }
     if (settings.unifiedDataView) {
       if (ImGui::BeginPopupContextItem("UnifiedClone",ImGuiMouseButton_Left)) {
         if (ImGui::MenuItem("instrument")) {
@@ -88,6 +94,9 @@ void FurnaceGUI::drawInsList(bool asChild) {
     if (ImGui::Button(ICON_FA_FOLDER_OPEN "##InsLoad")) {
       if (!settings.unifiedDataView) doAction(GUI_ACTION_INS_LIST_OPEN);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Load");
+    }
     if (settings.unifiedDataView) {
       if (ImGui::BeginPopupContextItem("UnifiedLoad",ImGuiMouseButton_Left)) {
         if (ImGui::MenuItem("instrument")) {
@@ -127,6 +136,9 @@ void FurnaceGUI::drawInsList(bool asChild) {
     if (ImGui::Button(ICON_FA_FLOPPY_O "##InsSave")) {
       if (!settings.unifiedDataView) doAction(GUI_ACTION_INS_LIST_SAVE);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Save");
+    }
     if (settings.unifiedDataView) {
       if (ImGui::BeginPopupContextItem("UnifiedSave",ImGuiMouseButton_Left)) {
         if (ImGui::MenuItem("instrument")) {
@@ -166,15 +178,24 @@ void FurnaceGUI::drawInsList(bool asChild) {
       if (ImGui::ArrowButton("InsUp",ImGuiDir_Up)) {
         doAction(GUI_ACTION_INS_LIST_MOVE_UP);
       }
+      if (ImGui::IsItemHovered()) {
+        ImGui::SetTooltip("Move up");
+      }
       ImGui::SameLine();
       if (ImGui::ArrowButton("InsDown",ImGuiDir_Down)) {
         doAction(GUI_ACTION_INS_LIST_MOVE_DOWN);
       }
+      if (ImGui::IsItemHovered()) {
+        ImGui::SetTooltip("Move down");
+      }
     }
     ImGui::SameLine();
     if (ImGui::Button(ICON_FA_TIMES "##InsDelete")) {
       if (!settings.unifiedDataView) doAction(GUI_ACTION_INS_LIST_DELETE);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Delete");
+    }
     if (settings.unifiedDataView) {
       if (ImGui::BeginPopupContextItem("UnifiedDelete",ImGuiMouseButton_Left)) {
         if (ImGui::MenuItem("instrument")) {
@@ -521,14 +542,23 @@ void FurnaceGUI::drawWaveList(bool asChild) {
     if (ImGui::Button(ICON_FA_PLUS "##WaveAdd")) {
       doAction(GUI_ACTION_WAVE_LIST_ADD);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Add");
+    }
     ImGui::SameLine();
     if (ImGui::Button(ICON_FA_FILES_O "##WaveClone")) {
       doAction(GUI_ACTION_WAVE_LIST_DUPLICATE);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Duplicate");
+    }
     ImGui::SameLine();
     if (ImGui::Button(ICON_FA_FOLDER_OPEN "##WaveLoad")) {
       doAction(GUI_ACTION_WAVE_LIST_OPEN);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Load");
+    }
     if (ImGui::BeginPopupContextItem("WaveOpenOpt")) {
       if (ImGui::MenuItem("replace...")) {
         doAction((curWave>=0 && curWave<(int)e->song.wave.size())?GUI_ACTION_WAVE_LIST_OPEN_REPLACE:GUI_ACTION_WAVE_LIST_OPEN);
@@ -539,6 +569,9 @@ void FurnaceGUI::drawWaveList(bool asChild) {
     if (ImGui::Button(ICON_FA_FLOPPY_O "##WaveSave")) {
       doAction(GUI_ACTION_WAVE_LIST_SAVE);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Save");
+    }
     if (!settings.unifiedDataView) {
       if (ImGui::BeginPopupContextItem("WaveSaveFormats",ImGuiMouseButton_Right)) {
         if (ImGui::MenuItem("save as .dmw...")) {
@@ -554,14 +587,23 @@ void FurnaceGUI::drawWaveList(bool asChild) {
     if (ImGui::ArrowButton("WaveUp",ImGuiDir_Up)) {
       doAction(GUI_ACTION_WAVE_LIST_MOVE_UP);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Move up");
+    }
     ImGui::SameLine();
     if (ImGui::ArrowButton("WaveDown",ImGuiDir_Down)) {
       doAction(GUI_ACTION_WAVE_LIST_MOVE_DOWN);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Move down");
+    }
     ImGui::SameLine();
     if (ImGui::Button(ICON_FA_TIMES "##WaveDelete")) {
       doAction(GUI_ACTION_WAVE_LIST_DELETE);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Delete");
+    }
     ImGui::Separator();
     if (ImGui::BeginTable("WaveListScroll",1,ImGuiTableFlags_ScrollY)) {
       actualWaveList();
@@ -598,14 +640,23 @@ void FurnaceGUI::drawSampleList(bool asChild) {
     if (ImGui::Button(ICON_FA_FILE "##SampleAdd")) {
       doAction(GUI_ACTION_SAMPLE_LIST_ADD);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Add");
+    }
     ImGui::SameLine();
     if (ImGui::Button(ICON_FA_FILES_O "##SampleClone")) {
       doAction(GUI_ACTION_SAMPLE_LIST_DUPLICATE);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Duplicate");
+    }
     ImGui::SameLine();
     if (ImGui::Button(ICON_FA_FOLDER_OPEN "##SampleLoad")) {
       doAction(GUI_ACTION_SAMPLE_LIST_OPEN);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Load");
+    }
     if (ImGui::BeginPopupContextItem("SampleOpenOpt")) {
       if (ImGui::MenuItem("replace...")) {
         doAction((curSample>=0 && curSample<(int)e->song.sample.size())?GUI_ACTION_SAMPLE_LIST_OPEN_REPLACE:GUI_ACTION_SAMPLE_LIST_OPEN);
@@ -623,26 +674,44 @@ void FurnaceGUI::drawSampleList(bool asChild) {
     if (ImGui::Button(ICON_FA_FLOPPY_O "##SampleSave")) {
       doAction(GUI_ACTION_SAMPLE_LIST_SAVE);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Save");
+    }
     ImGui::SameLine();
     if (ImGui::ArrowButton("SampleUp",ImGuiDir_Up)) {
       doAction(GUI_ACTION_SAMPLE_LIST_MOVE_UP);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Move up");
+    }
     ImGui::SameLine();
     if (ImGui::ArrowButton("SampleDown",ImGuiDir_Down)) {
       doAction(GUI_ACTION_SAMPLE_LIST_MOVE_DOWN);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Move down");
+    }
     ImGui::SameLine();
     if (ImGui::Button(ICON_FA_TIMES "##SampleDelete")) {
       doAction(GUI_ACTION_SAMPLE_LIST_DELETE);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Delete");
+    }
     ImGui::SameLine();
     if (ImGui::Button(ICON_FA_VOLUME_UP "##PreviewSampleL")) {
       doAction(GUI_ACTION_SAMPLE_LIST_PREVIEW);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Preview");
+    }
     ImGui::SameLine();
     if (ImGui::Button(ICON_FA_VOLUME_OFF "##StopSampleL")) {
       doAction(GUI_ACTION_SAMPLE_LIST_STOP_PREVIEW);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Stop preview");
+    }
     ImGui::Separator();
     if (ImGui::BeginTable("SampleListScroll",1,ImGuiTableFlags_ScrollY)) {
       actualSampleList();
diff --git a/src/gui/editControls.cpp b/src/gui/editControls.cpp
index 19010e3d5..7a38d2f53 100644
--- a/src/gui/editControls.cpp
+++ b/src/gui/editControls.cpp
@@ -188,16 +188,25 @@ void FurnaceGUI::drawMobileControls() {
     if (ImGui::Button(ICON_FA_PLAY "##Play",buttonSize)) {
       play();
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Play");
+    }
     popToggleColors();
     if (portrait) ImGui::SameLine();
     if (ImGui::Button(ICON_FA_STOP "##Stop",buttonSize)) {
       stop();
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Stop");
+    }
     if (portrait) ImGui::SameLine();
     if (ImGui::Button(ICON_FA_ARROW_DOWN "##StepOne",buttonSize)) {
       e->stepOne(cursor.y);
       pendingStepUpdate=true;
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Step 1 row");
+    }
 
     bool repeatPattern=e->getRepeatPattern();
     pushToggleColors(repeatPattern);
@@ -205,6 +214,9 @@ void FurnaceGUI::drawMobileControls() {
     if (ImGui::Button(ICON_FA_REPEAT "##RepeatPattern",buttonSize)) {
       e->setRepeatPattern(!repeatPattern);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Repeat pattern");
+    }
     popToggleColors();
 
     pushToggleColors(edit);
@@ -212,6 +224,9 @@ void FurnaceGUI::drawMobileControls() {
     if (ImGui::Button(ICON_FA_CIRCLE "##Edit",buttonSize)) {
       edit=!edit;
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Edit");
+    }
     popToggleColors();
 
     bool metro=e->getMetronome();
@@ -220,6 +235,9 @@ void FurnaceGUI::drawMobileControls() {
     if (ImGui::Button(ICON_FA_BELL_O "##Metronome",buttonSize)) {
       e->setMetronome(!metro);
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Metronome");
+    }
     popToggleColors();
   }
   if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_EDIT_CONTROLS;
@@ -445,11 +463,17 @@ void FurnaceGUI::drawEditControls() {
         if (ImGui::Button(ICON_FA_PLAY "##Play")) {
           play();
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Play");
+        }
         popToggleColors();
         ImGui::SameLine();
         if (ImGui::Button(ICON_FA_STOP "##Stop")) {
           stop();
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Stop");
+        }
         ImGui::SameLine();
         ImGui::Checkbox("Edit",&edit);
         ImGui::SameLine();
@@ -473,6 +497,9 @@ void FurnaceGUI::drawEditControls() {
           e->stepOne(cursor.y);
           pendingStepUpdate=true;
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Step 1 row");
+        }
 
         ImGui::SameLine();
         pushToggleColors(noteInputPoly);
@@ -480,6 +507,9 @@ void FurnaceGUI::drawEditControls() {
           noteInputPoly=!noteInputPoly;
           e->setAutoNotePoly(noteInputPoly);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Polyphony");
+        }
         popToggleColors();
       }
       if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_EDIT_CONTROLS;
@@ -490,17 +520,26 @@ void FurnaceGUI::drawEditControls() {
         if (ImGui::Button(ICON_FA_STOP "##Stop")) {
           stop();
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Stop");
+        }
         ImGui::SameLine();
         pushToggleColors(e->isPlaying());
         if (ImGui::Button(ICON_FA_PLAY "##Play")) {
           play();
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Play");
+        }
         popToggleColors();
         ImGui::SameLine();
         if (ImGui::Button(ICON_FA_ARROW_DOWN "##StepOne")) {
           e->stepOne(cursor.y);
           pendingStepUpdate=true;
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Step 1 row");
+        }
 
         ImGui::SameLine();
         bool repeatPattern=e->getRepeatPattern();
@@ -508,6 +547,9 @@ void FurnaceGUI::drawEditControls() {
         if (ImGui::Button(ICON_FA_REPEAT "##RepeatPattern")) {
           e->setRepeatPattern(!repeatPattern);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Repeat pattern");
+        }
         popToggleColors();
 
         ImGui::SameLine();
@@ -515,6 +557,9 @@ void FurnaceGUI::drawEditControls() {
         if (ImGui::Button(ICON_FA_CIRCLE "##Edit")) {
           edit=!edit;
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Edit");
+        }
         popToggleColors();
 
         ImGui::SameLine();
@@ -523,6 +568,9 @@ void FurnaceGUI::drawEditControls() {
         if (ImGui::Button(ICON_FA_BELL_O "##Metronome")) {
           e->setMetronome(!metro);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Metronome");
+        }
         popToggleColors();
 
         ImGui::SameLine();
@@ -565,6 +613,9 @@ void FurnaceGUI::drawEditControls() {
           noteInputPoly=!noteInputPoly;
           e->setAutoNotePoly(noteInputPoly);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Polyphony");
+        }
         popToggleColors();
       }
       if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_EDIT_CONTROLS;
@@ -577,26 +628,41 @@ void FurnaceGUI::drawEditControls() {
         if (ImGui::Button(ICON_FA_PLAY "##Play",buttonSize)) {
           play();
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Play");
+        }
         popToggleColors();
         if (ImGui::Button(ICON_FA_STOP "##Stop",buttonSize)) {
           stop();
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Stop");
+        }
         if (ImGui::Button(ICON_FA_ARROW_DOWN "##StepOne",buttonSize)) {
           e->stepOne(cursor.y);
           pendingStepUpdate=true;
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Step 1 row");
+        }
 
         bool repeatPattern=e->getRepeatPattern();
         pushToggleColors(repeatPattern);
         if (ImGui::Button(ICON_FA_REPEAT "##RepeatPattern",buttonSize)) {
           e->setRepeatPattern(!repeatPattern);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Repeat pattern");
+        }
         popToggleColors();
 
         pushToggleColors(edit);
         if (ImGui::Button(ICON_FA_CIRCLE "##Edit",buttonSize)) {
           edit=!edit;
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Edit");
+        }
         popToggleColors();
 
         bool metro=e->getMetronome();
@@ -604,9 +670,15 @@ void FurnaceGUI::drawEditControls() {
         if (ImGui::Button(ICON_FA_BELL_O "##Metronome",buttonSize)) {
           e->setMetronome(!metro);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Metronome");
+        }
         popToggleColors();
 
         ImGui::Text("Oct.");
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Octave");
+        }
         float avail=ImGui::GetContentRegionAvail().x;
         ImGui::SetNextItemWidth(avail);
         if (ImGui::InputInt("##Octave",&curOctave,0,0)) {
@@ -631,15 +703,24 @@ void FurnaceGUI::drawEditControls() {
         }
 
         ImGui::Text("Foll.");
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Follow");
+        }
         pushToggleColors(followOrders);
         if (ImGui::Button("Ord##FollowOrders",buttonSize)) { handleUnimportant
           followOrders=!followOrders;
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Orders");
+        }
         popToggleColors();
         pushToggleColors(followPattern);
         if (ImGui::Button("Pat##FollowPattern",buttonSize)) { handleUnimportant
           followPattern=!followPattern;
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Pattern");
+        }
         popToggleColors();
 
         pushToggleColors(noteInputPoly);
@@ -647,6 +728,9 @@ void FurnaceGUI::drawEditControls() {
           noteInputPoly=!noteInputPoly;
           e->setAutoNotePoly(noteInputPoly);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Polyphony");
+        }
         popToggleColors();
       }
       if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_EDIT_CONTROLS;
@@ -659,33 +743,51 @@ void FurnaceGUI::drawEditControls() {
           if (ImGui::Button(ICON_FA_STOP "##Stop")) {
             stop();
           }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Stop");
+          }
           popToggleColors();
         } else {
           if (ImGui::Button(ICON_FA_PLAY "##Play")) {
             play(oldRow);
           }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Play");
+          }
         }
         ImGui::SameLine();
         if (ImGui::Button(ICON_FA_PLAY_CIRCLE "##PlayAgain")) {
           e->setRepeatPattern(false);
           play();
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Play from the beginning of this pattern");
+        }
         ImGui::SameLine();
         if (ImGui::Button(ICON_FA_STEP_FORWARD "##PlayRepeat")) {
           e->setRepeatPattern(true);
           play();
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Repeat from the beginning of this pattern");
+        }
         ImGui::SameLine();
         if (ImGui::Button(ICON_FA_ARROW_DOWN "##StepOne")) {
           e->stepOne(cursor.y);
           pendingStepUpdate=true;
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Step 1 row");
+        }
 
         ImGui::SameLine();
         pushToggleColors(edit);
         if (ImGui::Button(ICON_FA_CIRCLE "##Edit")) {
           edit=!edit;
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Edit");
+        }
         popToggleColors();
 
         bool metro=e->getMetronome();
@@ -694,6 +796,9 @@ void FurnaceGUI::drawEditControls() {
         if (ImGui::Button(ICON_FA_BELL_O "##Metronome")) {
           e->setMetronome(!metro);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Metronome");
+        }
         popToggleColors();
 
         ImGui::SameLine();
@@ -702,6 +807,9 @@ void FurnaceGUI::drawEditControls() {
         if (ImGui::Button(ICON_FA_REPEAT "##RepeatPattern")) {
           e->setRepeatPattern(!repeatPattern);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Repeat pattern");
+        }
         popToggleColors();
 
         ImGui::SameLine();
@@ -710,6 +818,9 @@ void FurnaceGUI::drawEditControls() {
           noteInputPoly=!noteInputPoly;
           e->setAutoNotePoly(noteInputPoly);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Polyphony");
+        }
         popToggleColors();
       }
       if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_EDIT_CONTROLS;
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 1487b50f5..310f8add9 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -1040,13 +1040,13 @@ void FurnaceGUI::noteInput(int num, int key, int vol) {
 
   prepareUndo(GUI_UNDO_PATTERN_EDIT);
 
-  if (key==100) { // note off
+  if (key==GUI_NOTE_OFF) { // note off
     pat->data[cursor.y][0]=100;
     pat->data[cursor.y][1]=0;
-  } else if (key==101) { // note off + env release
+  } else if (key==GUI_NOTE_OFF_RELEASE) { // note off + env release
     pat->data[cursor.y][0]=101;
     pat->data[cursor.y][1]=0;
-  } else if (key==102) { // env release only
+  } else if (key==GUI_NOTE_RELEASE) { // env release only
     pat->data[cursor.y][0]=102;
     pat->data[cursor.y][1]=0;
   } else {
@@ -5979,8 +5979,8 @@ FurnaceGUI::FurnaceGUI():
   pianoOptionsSet(false),
   pianoOffset(6),
   pianoOffsetEdit(9),
-  pianoView(2),
-  pianoInputPadMode(2),
+  pianoView(PIANO_LAYOUT_AUTOMATIC),
+  pianoInputPadMode(PIANO_INPUT_PAD_SPLIT_AUTO),
 #else
   pianoOctaves(7),
   pianoOctavesEdit(4),
@@ -5988,8 +5988,8 @@ FurnaceGUI::FurnaceGUI():
   pianoSharePosition(true),
   pianoOffset(6),
   pianoOffsetEdit(6),
-  pianoView(0),
-  pianoInputPadMode(0),
+  pianoView(PIANO_LAYOUT_STANDARD),
+  pianoInputPadMode(PIANO_INPUT_PAD_DISABLE),
 #endif
   hasACED(false),
   waveGenBaseShape(0),
diff --git a/src/gui/gui.h b/src/gui/gui.h
index e5e589852..dbdb26ccc 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -653,6 +653,12 @@ enum PasteMode {
   GUI_PASTE_MODE_INS_BG
 };
 
+enum NoteCtrl {
+  GUI_NOTE_OFF=100,
+  GUI_NOTE_OFF_RELEASE=101,
+  GUI_NOTE_RELEASE=102
+};
+
 #define FURKMOD_CTRL (1U<<31)
 #define FURKMOD_SHIFT (1<<29)
 #define FURKMOD_META (1<<28)
@@ -1677,6 +1683,21 @@ class FurnaceGUI {
   bool followLog;
 
   // piano
+  enum PianoLayoutMode {
+    PIANO_LAYOUT_STANDARD = 0,
+    PIANO_LAYOUT_CONTINUOUS,
+    PIANO_LAYOUT_AUTOMATIC,
+    PIANO_LAYOUT_MAX
+  };
+
+  enum PianoInputPadMode {
+    PIANO_INPUT_PAD_DISABLE = 0,
+    PIANO_INPUT_PAD_REPLACE,
+    PIANO_INPUT_PAD_SPLIT_AUTO,
+    PIANO_INPUT_PAD_SPLIT_VISIBLE,
+    PIANO_INPUT_PAD_MAX
+  };
+
   int pianoOctaves, pianoOctavesEdit;
   bool pianoOptions, pianoSharePosition, pianoOptionsSet;
   float pianoKeyHit[180];
diff --git a/src/gui/insEdit.cpp b/src/gui/insEdit.cpp
index bf4727510..5891008fa 100644
--- a/src/gui/insEdit.cpp
+++ b/src/gui/insEdit.cpp
@@ -2166,10 +2166,16 @@ void FurnaceGUI::drawInsEdit() {
         if (ImGui::Button(ICON_FA_FOLDER_OPEN "##IELoad")) {
           doAction(GUI_ACTION_INS_LIST_OPEN_REPLACE);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Load");
+        }
         ImGui::SameLine();
         if (ImGui::Button(ICON_FA_FLOPPY_O "##IESave")) {
           doAction(GUI_ACTION_INS_LIST_SAVE);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Save");
+        }
         if (ImGui::BeginPopupContextItem("InsSaveFormats",ImGuiMouseButton_Right)) {
           if (ImGui::MenuItem("save in legacy format...")) {
             doAction(GUI_ACTION_INS_LIST_SAVE_OLD);
diff --git a/src/gui/piano.cpp b/src/gui/piano.cpp
index 7f1360cc8..6d80d5b42 100644
--- a/src/gui/piano.cpp
+++ b/src/gui/piano.cpp
@@ -63,7 +63,7 @@ void FurnaceGUI::drawPiano() {
     if (ImGui::BeginTable("PianoLayout",((pianoOptions && (!mobileUI || !portrait))?2:1),ImGuiTableFlags_BordersInnerV)) {
       int& off=(e->isPlaying() || pianoSharePosition)?pianoOffset:pianoOffsetEdit;
       int& oct=(e->isPlaying() || pianoSharePosition)?pianoOctaves:pianoOctavesEdit;
-      bool view=(pianoView==2)?(!e->isPlaying()):pianoView;
+      bool view=(pianoView==PIANO_LAYOUT_AUTOMATIC)?(!e->isPlaying()):pianoView;
       if (pianoOptions && (!mobileUI || !portrait)) {
         ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthFixed);
       }
@@ -76,48 +76,63 @@ void FurnaceGUI::drawPiano() {
         ImVec2 optionSize=ImVec2((mobileUI && portrait)?((ImGui::GetContentRegionAvail().x-ImGui::GetStyle().ItemSpacing.x*5.0f)/6.0f):(1.2f*optionSizeY),optionSizeY);
         if (pianoOptionsSet) {
           if (ImGui::Button("OFF##PianoNOff",optionSize)) {
-            if (edit) noteInput(0,100);
+            if (edit) noteInput(0,GUI_NOTE_OFF);
+          }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Note Off");
           }
           ImGui::SameLine();
           if (ImGui::Button("===##PianoNRel",optionSize)) {
-            if (edit) noteInput(0,101);
+            if (edit) noteInput(0,GUI_NOTE_OFF_RELEASE);
+          }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Note Off + Release");
           }
         } else {
           if (ImGui::Button(ICON_FA_ARROW_LEFT "##PianoLeft",optionSize)) {
             off--;
             if (off<0) off=0;
           }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Left scroll");
+          }
           ImGui::SameLine();
           if (ImGui::Button(ICON_FA_ARROW_RIGHT "##PianoRight",optionSize)) {
             off++;
             if ((off+oct)>14) off=15-oct;
           }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Right scroll");
+          }
         }
         ImGui::SameLine();
         ImGui::Button(ICON_FA_ELLIPSIS_V "##PianoOptions",optionSize);
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Piano Options");
+        }
         if (ImGui::BeginPopupContextItem("PianoOptions",ImGuiPopupFlags_MouseButtonLeft)) {
           ImGui::Text("Key layout:");
-          if (ImGui::RadioButton("Automatic",pianoView==2)) {
-            pianoView=2;
+          if (ImGui::RadioButton("Automatic",pianoView==PIANO_LAYOUT_AUTOMATIC)) {
+            pianoView=PIANO_LAYOUT_AUTOMATIC;
           }
-          if (ImGui::RadioButton("Standard",pianoView==0)) {
-            pianoView=0;
+          if (ImGui::RadioButton("Standard",pianoView==PIANO_LAYOUT_STANDARD)) {
+            pianoView=PIANO_LAYOUT_STANDARD;
           }
-          if (ImGui::RadioButton("Continuous",pianoView==1)) {
-            pianoView=1;
+          if (ImGui::RadioButton("Continuous",pianoView==PIANO_LAYOUT_CONTINUOUS)) {
+            pianoView=PIANO_LAYOUT_CONTINUOUS;
           }
           ImGui::Text("Value input pad:");
-          if (ImGui::RadioButton("Disabled",pianoInputPadMode==0)) {
-            pianoInputPadMode=0;
+          if (ImGui::RadioButton("Disabled",pianoInputPadMode==PIANO_INPUT_PAD_DISABLE)) {
+            pianoInputPadMode=PIANO_INPUT_PAD_DISABLE;
           }
-          if (ImGui::RadioButton("Replace piano",pianoInputPadMode==1)) {
-            pianoInputPadMode=1;
+          if (ImGui::RadioButton("Replace piano",pianoInputPadMode==PIANO_INPUT_PAD_REPLACE)) {
+            pianoInputPadMode=PIANO_INPUT_PAD_REPLACE;
           }
-          if (ImGui::RadioButton("Split (automatic)",pianoInputPadMode==2)) {
-            pianoInputPadMode=2;
+          if (ImGui::RadioButton("Split (automatic)",pianoInputPadMode==PIANO_INPUT_PAD_SPLIT_AUTO)) {
+            pianoInputPadMode=PIANO_INPUT_PAD_SPLIT_AUTO;
           }
-          if (ImGui::RadioButton("Split (always visible)",pianoInputPadMode==3)) {
-            pianoInputPadMode=3;
+          if (ImGui::RadioButton("Split (always visible)",pianoInputPadMode==PIANO_INPUT_PAD_SPLIT_VISIBLE)) {
+            pianoInputPadMode=PIANO_INPUT_PAD_SPLIT_VISIBLE;
           }
           ImGui::Checkbox("Share play/edit offset/range",&pianoSharePosition);
           ImGui::EndPopup();
@@ -129,28 +144,43 @@ void FurnaceGUI::drawPiano() {
 
         if (pianoOptionsSet) {
           if (ImGui::Button("REL##PianoNMRel",optionSize)) {
-            if (edit) noteInput(0,102);
+            if (edit) noteInput(0,GUI_NOTE_RELEASE);
+          }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Note Release");
           }
           ImGui::SameLine();
           if (ImGui::Button(ICON_FA_TIMES "##PianoDelP",optionSize)) {
             doDelete();
           }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Note Delete");
+          }
         } else {
           if (ImGui::Button(ICON_FA_MINUS "##PianoOctaveDown",optionSize)) {
             oct--;
             if (oct<1) oct=1;
           }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Octave down");
+          }
           ImGui::SameLine();
           if (ImGui::Button(ICON_FA_PLUS "##PianoOctaveUp",optionSize)) {
             oct++;
             if (oct>15) oct=15;
             if ((off+oct)>14) off=15-oct;
           }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Octave up");
+          }
         }
         ImGui::SameLine();
         if (ImGui::Button(ICON_FA_ELLIPSIS_H "##PianoSel",optionSize)) {
           pianoOptionsSet=!pianoOptionsSet;
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip(pianoOptionsSet?"Note Off/Release":"Scroll/Resize Piano");
+        }
       }
 
       if (mobileUI && portrait) {
@@ -158,7 +188,7 @@ void FurnaceGUI::drawPiano() {
       }
 
       ImGui::TableNextColumn();
-      if (pianoInputPadMode==1 && cursor.xFine>0 && curWindow==GUI_WINDOW_PATTERN) {
+      if (pianoInputPadMode==PIANO_INPUT_PAD_REPLACE && cursor.xFine>0 && curWindow==GUI_WINDOW_PATTERN) {
         ImVec2 buttonSize=ImGui::GetContentRegionAvail();
         if (ImGui::BeginTable("InputPadP",8,ImGuiTableFlags_SizingFixedSame)) {
           ImGui::TableNextRow();
@@ -431,7 +461,7 @@ void FurnaceGUI::drawPiano() {
   ImGui::End();
 
   // draw input pad if necessary
-  if (curWindow==GUI_WINDOW_PATTERN && ((pianoInputPadMode==2 && cursor.xFine>0) || pianoInputPadMode==3)) {
+  if (curWindow==GUI_WINDOW_PATTERN && ((pianoInputPadMode==PIANO_INPUT_PAD_SPLIT_AUTO && cursor.xFine>0) || pianoInputPadMode==PIANO_INPUT_PAD_SPLIT_VISIBLE)) {
     if (ImGui::Begin("Input Pad",NULL,ImGuiWindowFlags_NoTitleBar)) {
       ImGui::BeginDisabled(cursor.xFine==0);
       if (ImGui::BeginTable("InputPad",3,ImGuiTableFlags_Borders)) {
@@ -480,6 +510,9 @@ void FurnaceGUI::drawPiano() {
         if (ImGui::Button(ICON_FA_TIMES "##PianoDel",buttonSize)) {
           doDelete();
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Delete");
+        }
         ImGui::TableNextColumn();
         VALUE_DIGIT(0,"0");
         ImGui::TableNextColumn();
diff --git a/src/gui/sampleEdit.cpp b/src/gui/sampleEdit.cpp
index 6cc979ac4..04941158f 100644
--- a/src/gui/sampleEdit.cpp
+++ b/src/gui/sampleEdit.cpp
@@ -118,10 +118,16 @@ void FurnaceGUI::drawSampleEdit() {
       if (ImGui::Button(ICON_FA_FOLDER_OPEN "##SELoad")) {
         doAction(GUI_ACTION_SAMPLE_LIST_OPEN_REPLACE);
       }
+      if (ImGui::IsItemHovered()) {
+        ImGui::SetTooltip("Load");
+      }
       ImGui::SameLine();
       if (ImGui::Button(ICON_FA_FLOPPY_O "##SESave")) {
         doAction(GUI_ACTION_SAMPLE_LIST_SAVE);
       }
+      if (ImGui::IsItemHovered()) {
+        ImGui::SetTooltip("Save");
+      }
 
       ImGui::SameLine();
 
diff --git a/src/gui/subSongs.cpp b/src/gui/subSongs.cpp
index a6eb70f0b..9801ab57c 100644
--- a/src/gui/subSongs.cpp
+++ b/src/gui/subSongs.cpp
@@ -50,10 +50,16 @@ void FurnaceGUI::drawSubSongs() {
           if (ImGui::SmallButton(ICON_FA_ARROW_UP "##SubUp")) {
             e->moveSubSongUp(i);
           }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Move up");
+          }
           ImGui::SameLine();
           if (ImGui::SmallButton(ICON_FA_ARROW_DOWN "##SubDown")) {
             e->moveSubSongDown(i);
           }
+          if (ImGui::IsItemHovered()) {
+            ImGui::SetTooltip("Move down");
+          }
           ImGui::PopID();
         }
         ImGui::EndTable();
@@ -79,6 +85,9 @@ void FurnaceGUI::drawSubSongs() {
         MARK_MODIFIED;
       }
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Add");
+    }
     ImGui::SameLine();
     if (ImGui::Button(ICON_FA_MINUS "##SubSongDel")) {
       if (e->song.subsong.size()<=1) {
@@ -87,6 +96,9 @@ void FurnaceGUI::drawSubSongs() {
         showWarning("are you sure you want to remove this subsong?",GUI_WARN_SUBSONG_DEL);
       }
     }
+    if (ImGui::IsItemHovered()) {
+      ImGui::SetTooltip("Remove");
+    }
 
     ImGui::Text("Name");
     ImGui::SameLine();
diff --git a/src/gui/waveEdit.cpp b/src/gui/waveEdit.cpp
index fd863e500..92e98238a 100644
--- a/src/gui/waveEdit.cpp
+++ b/src/gui/waveEdit.cpp
@@ -241,10 +241,16 @@ void FurnaceGUI::drawWaveEdit() {
         if (ImGui::Button(ICON_FA_FOLDER_OPEN "##WELoad")) {
           doAction(GUI_ACTION_WAVE_LIST_OPEN_REPLACE);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Load");
+        }
         ImGui::SameLine();
         if (ImGui::Button(ICON_FA_FLOPPY_O "##WESave")) {
           doAction(GUI_ACTION_WAVE_LIST_SAVE);
         }
+        if (ImGui::IsItemHovered()) {
+          ImGui::SetTooltip("Save");
+        }
         if (ImGui::BeginPopupContextItem("WaveSaveFormats",ImGuiMouseButton_Right)) {
           if (ImGui::MenuItem("save as .dmw...")) {
             doAction(GUI_ACTION_WAVE_LIST_SAVE_DMW);