This is a JavaScript library of tools designed to work with sound fonts.
At the moment the main component here is a pair of tools, designed to run under Node.js, which convert a SF2 sound font into a set of YAML files plus some WAV files for the actual sample content. This can be used to enable collaborative editing of soundfonts using typical version control systems and software development workflows aimed at working with source code.
See the YAML representation of a soundfont for details about the file format.