What is an FMS file? An FMS file is a project file created by BleuBleu FamiStudio, a Nintendo Entertainment System (NES) and Famicon music editor. It contains a song a user has created in FamiStudio, likely comprised of multiple tracks, patterns, and samples. The songs FMS files contain sound like NES and Famicon video game music.

More Information FMS file open in BleuBleu FamiStudio FamiStudio allows gamers and chiptune enthusiasts to create, edit, and publish 8-bit video game music. These enthusiasts can then share their songs with others or include them in their own, homebrew NES games. Each FamiStudio song project is saved as an FMS file. These files describe a song's included tracks, patterns, samples, notes, and instruments. When opened in FamiStudio, FMS files appear as a series of color-coded blocks (patterns), with notes arranged within each block. In FamiStudio, users can edit and play the song an FMS file describes, and they can export the song in a variety of audio, video, project, and code formats.