diff --git a/papers/format.md b/papers/format.md
index 685e1aefd..d30c48b52 100644
--- a/papers/format.md
+++ b/papers/format.md
@@ -271,6 +271,8 @@ size | description
      |   - 0xc3: OPN CSM - 10 channels
      |   - 0xc4: PC-98 CSM - 20 channels
      |   - 0xc5: YM2610B CSM - 20 channels
+     |   - 0xc6: K007232 - 2 channels
+     |   - 0xc7: GA20 - 4 channels
      |   - 0xde: YM2610B extended - 19 channels
      |   - 0xe0: QSound - 19 channels
      |   - 0xfc: Pong - 1 channel
diff --git a/papers/newIns.md b/papers/newIns.md
index dbc1e4f2d..548edbdeb 100644
--- a/papers/newIns.md
+++ b/papers/newIns.md
@@ -65,6 +65,57 @@ size | description
  ??? | data...
 ```
 
+the following instrument types are available:
+
+- 0: SN76489
+- 1: FM (OPN)
+- 2: Game Boy
+- 3: C64
+- 4: Amiga/sample
+- 5: PC Engine
+- 6: AY-3-8910
+- 7: AY8930
+- 8: TIA
+- 9: SAA1099
+- 10: VIC
+- 11: PET
+- 12: VRC6
+- 13: OPLL
+- 14: OPL
+- 15: FDS
+- 16: Virtual Boy
+- 17: Namco 163
+- 18: SCC
+- 19: OPZ
+- 20: POKEY
+- 21: PC Speaker
+- 22: WonderSwan
+- 23: Lynx
+- 24: VERA
+- 25: X1-010
+- 26: VRC6 (saw)
+- 27: ES5506
+- 28: MultiPCM
+- 29: SNES
+- 30: Sound Unit
+- 31: Namco WSG
+- 32: OPL (drums)
+- 33: FM (OPM)
+- 34: NES
+- 35: MSM6258
+- 36: MSM6295
+- 37: ADPCM-A
+- 38: ADPCM-B
+- 39: SegaPCM
+- 40: QSound
+- 41: YMZ280B
+- 42: RF5C68
+- 43: MSM5232
+- 44: T6W28
+- 45: K007232
+- 46: GA20
+- 47: Pokémon Mini
+
 the following feature codes are recognized:
 
 - `NA`: instrument name