Add conditional jump to music player

loader/samples/minexample/Makefile

@@ -131,7 +131,7 @@ DISKIMAGE    = $(BUILDDIR)/$(NAME)-$(_PLATFORM_).d64
 AS_FLAGS     = -Wa -I../../../shared -I ../../include -u __EXEHDR__
 
 ZX0PRGS		 = \
-	use_this_sid.zx0.prg \
+	song0.zx0.prg \
 	badguy.zx0.prg \
 	title_320-prepared.zx0.prg \
 	tower.zx0.prg \
@@ -180,7 +180,7 @@ $(DISKIMAGE): $(ASSEMBLE) $(CC1541) $(ZX0PRGS) $(LZPRGS) font.bin
 	$(RM) $@
 	$(CC1541) -n "otomata labs" -i " 2025" \
 	-f "ys2intro" -w $< \
-	-f "song0" -w use_this_sid.zx0.prg \
+	-f "song0" -w song0.zx0.prg \
 	-f "badguy" -w badguy.zx0.prg \
 	-f "font" -w font.bin \
 	-f "intrbmp" -w title_320-prepared.zx0.prg \
@@ -226,7 +226,7 @@ $(ZX02):
 	$(PRINTF) "\x00\x90" | cat - $@.tmp > $@
 	$(RM) $@.tmp
 
-use_this_sid.bin: ys2_port_legato.fur
+song0.bin: ys2_fixed_drums.fur
 	cd $(FURC64) && ./convert.sh $(abspath $<)
 	cp $(FURC64)/asm/song.bin $@