bemani-clef is a player for Beatmania IIDX, GuitarFreaks and Drummania (Gitadora), and Pop'n Music arcade music tracks.

989snd-clef is a player for 989snd music sequences from games supported by OpenGOAL such as Jak & Daxter and Sly Cooper.

mp2k-clef is a player and VST3/CLAP plugin for MusicPlayer2000 tracks from Game Boy Advance games.

dse-clef is a player for game music originally published using Procyon Digital Sound Elements.

libclef is a generic library for building decoders and media player plugins for sequenced audio formats.