This hack supports one audio track per course set like the original game (e.g. Mario Circuit 1-4 all play the same song), or you can optionally provide a separate audio track for each course individually.

To use 8 tracks for the 8 track types, use PCM numbers 38-72. To have every single track have it's own unique theme, use track numbers 80-119. If e.g., track 94 isn't found (Mario Circuit 1) it will play track 38, which is all default Mario Circuit pcm fallbacks. If no PCM tracks are found, then the game will upload the original soundtrack in its place, which some PCM sets do for specific minor tracks.

Every race track theme has the immediate PCM number following it be the final lap song.

//* Song List:

//*   01: Race Fanfare
//*   03: Lakitu Beginning Countdown
//*   05: Final Lap Notice
//*   08: Super Star Theme
//*   09: New Record
//*   10: No Record
//*   11: Ranked Out
//*   12: Mario's Rank
//*   13: Luigi's Rank
//*   14: Bowser's Rank
//*   15: Peach's Rank
//*   16: DK's Rank
//*   17: Koopa's Rank
//*   18: Toad's Rank
//*   19: Yoshi's Rank
//*   20: Game Over
//*
//*   32: Title Screen
//*   35: Kart Select
//*   36: Staff Roll
//*   38: Mario Circuit
//*   41: Donut Plains
//*   44: Choco Island
//*   47: Koopa Beach
//*   50: Vanilla Lake
//*   53: Ghost Valley
//*   56: Bowser Castle
//*   59: Battle Mode
//*   62: Tournament Win
//*   65: Tournament Lose
//*   71: Rainbow Road
//*
//*   80: Mario Circuit 3*
//*   82: Ghost Valley 2*
//*   84: Donut Plains 2*
//*   86: Bowser Castle 2*
//*   88: Vanilla Lake 2*
//*   90: Rainbow Road*
//*   92: Koopa Beach 2*
//*   94: Mario Circuit 1*
//*   96: Ghost Valley 3*
//*   98: Bowser Castle 3*
//*  100: Choco Island 2*
//*  102: Donut Plains 3*
//*  104: Vanilla Lake 1*
//*  106: Koopa Beach 1*
//*  108: Mario Circuit 4*
//*  110: Mario Circuit 2*
//*  112: Ghost Valley 1*
//*  114: Bowser Castle 1*
//*  116: Choco Island 1*
//*  118: Donut Plains 1*
//*
//*  []  Song number +1 for fast version
//  [] Same song for all songs, +1 for fast version