libatm is a library for generating and working with MIDI files. It was purpose-built for All the Music, LLC to assist in its mission to enable musicians to make all of their music without the fear of frivolous copyright lawsuits. All code is released into the public domain via the Creative Commons Attribution 4.0 International License. If you're looking for a command line tool to generate and work with MIDI files, check out the atm-cli project that utilizes this library. For more information on All the Music, check out allthemusic.info. For more detailed library documentation, check out the crate documentation here.