The ALSA MIDI Filter application consists of a main script, named midifilter, and supporting Perl modules, configuration files, and documentation. It runs as an ALSA MIDI client that can receive input from a source (such as a MIDI keyboard connected to the computer), perform various filtering and other functionality based on the type and content of the MIDI input, and send the result to one or more other MIDI clients.
Slim HTML5 Audio jQuery Plugin is a very simple jQuery plugin to embed an audio player. It can insert HTML to play a given audio file using the HTML5 audio tag. It also inserts the embed container tab as fallback when the audio tag is not supported by the Web browser (e.g., IE7 and 8).
fretscpp is strongly inspired by the original FoF, reusing artwork to a large extent, with the source code rewritten from scratch. C++ instead of python should improve performance and allow easier support for features like whammy. It is playable, but some non-critical features are still missing.