TiMidity++, originally and still frequently informally titled TiMidity, is a software synthesizer that is able to convert from MIDI to various formats, and some other file types as well, to PCM audio, either rendering to soundcard in real time or storing it to file (for example, .wav file).
TiMidity++ can read a number of file types and devices, primarily the ordinary .mid files, but also .kar (MIDI with Karaoke lyrics), Recomposer files, and module files. It is one of the few programs which can read MIDI .mid files using the MIDI Tuning Standard. Files can be fetched from standard input, files, archive files, or from the network (over , FTP or NNTP).
Timidity has some support for microtonal music.
The original version of TiMidity was written in 1995 by Tuukka Toivonen. After he stopped updating the program, Masanao Izumo and other contributors started to work on the program, renaming it to TiMidity++. The TiMidity++ project has not been actively maintained since 2004. though code is still being committed every once in a while to the CVS head