A tool used to insert custom music into Super Mario World. This tool is completely hardware compatible and is designed with ease-of-use in mind. This tool supports both songs made for Addmusic 4.05 as well as AddmusicM with minimal tweaking.
Please read the readme for more information.
(Medic): This version fixes the bug that caused random music to play after the P-switch timer ran out on accurate emulators while using the SA-1.
(HertzDevil): This version fixes the issue where certain error messages do not show up in the AddmusicK GUI, especially the one about missing sample groups.
Ironically, that Readme actually seems to be even less up-to-date than the one included in the ZIP file. The one in the ZIP file actually includes a full changelog up to version 1.0.6. The one on the GitHub only goes up to 1.0.2. Can't really explain that. I assume HertzDevil might have updated the Readme locally and not commited their changes to GitHub?