MidiX is a MIDI Karaoke player that can play standard MIDI format files
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The Midifile-Optimizer lets you customize your midi files.
Editor for the Clavia Nord Modular G2
Software SF2 based MIDI synthesizer accessible as a standard MIDI Out device.
Record and edit multitrack MIDI and digital audio with this software
Select four chords, choose a music style and play along with your backing track.