We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
AddMusicK
From SnesLab
AddMusicK is an open-source tool that modifies the music in Super Mario World. AddMusicK is an extension of the AddMusic family and was developed by Kipernal. More recent versions are maintained by Codec.
AddMusicK was originally created for the SMW Central Production 2 Project.