Usually left over unused on a handful of Wii and GameCube games from the Nintendo Dolphin/Revolution SDK. 
Download MP3: https://mega.nz/folder/lsRB1IYD#HMM2UHP6aGVF-vo9VxmiCg
Download MIDI: https://mega.nz/folder/F0w2URiY#72GkGNsCet1mBYpj1CRtQA