Ym2413+instrumentsbin 【PLUS】

instruments.bin for YM2413 is typically 48 bytes; the first 8 bytes define the single user-programmable FM instrument (op1+op2 parameters), the remaining 40 bytes are often unused or hold multiple patches. The file can be loaded directly via emulators or sound driver code to replace the default instrument 16 (user slot).

If you have ever downloaded an MSX music player, a VGM (Video Game Music) pack, or a tracker like Arkos Tracker for OPLL use, you have likely encountered a file named instruments.bin . ym2413+instrumentsbin

Offset 0-7 : Instrument #1 (replaces preset 1) Offset 8-15 : Instrument #2 ... Offset 120-127: Instrument #16 (user slot) instruments

The famous is a small binary file (often 48 bytes) that writes custom FM parameters into the user instrument slot (channel 8 or channel 0 depending on implementation). Offset 0-7 : Instrument #1 (replaces preset 1)