This hack mutes the music. Sound effects, the intro chatter, keyhole, iris out and Bowser's zoom in/out and defeat fanfares are left intact. The player down and course clear themes now only have their sound effects.
Useful if you want to listen to other music while being able to hear the sound effects.
Database match: Super Mario All-Stars + Super Mario World (USA)
Database: No-Intro: Super Nintendo Entertainment System (v. 20210222-050638)
File/ROM SHA-1: D245E41A2B590F7D63666B0772CBDDFB26F254A2
File/ROM CRC32: F84305B1