Fractal Tune Smithy can play tunes as intricate as snowflakes. Choose one and transform it by varying the parameters to make it into your own tune or save the tunes in MIDI file format to use as background music for web pages, and even send them as musical e-cards. It includes authentic tunings from the SCALA archive for Early music, Jazz, Indian music, gamelans, ethnic tunings, and many tunings invented more recently, which can be selected from drop down lists.

Fractal Tune Smithy includes many features that will be of interest to composers, musicians, and microtonalists such as tonic shifts, legato monophonic playing in any tuning, exploration of the musical geometry scales of Erv Wilson, the ability to apply separate tunings to regions of midi keyboard or midi in parts, mouse theremin, and polyrhtythm metronomes.