 Recently, for the Commodore 64, the Mssiah has been released, which is very similar to the MidiNES, but with greater parameter controls, sequencing, analog drum emulation, and limited sample playback.The Commodore PET has the open-source PetSynth software, which uses the PET's 6522 chip for sound, allows the computer to be played like a piano keyboard, and features many effects.On the DOS platform, Fast Tracker is one of the most famous chiptune makers because of the ability to create hand-drawn samples with the mouse.