These products are available in standard audio plugin formats; they can be used in virtually any DAW (digital audio workstation).
Obelisk makes it effortless to write chord progressions and explore new harmonies for your melodic lines. This VST/AU plugin transforms each MIDI note that you play into a harmony that (optionally) matches the key and scale of your track. Music theory knowledge is not required. The structure of the harmony is created by selecting intervals on the right of the GUI, or by loading up one of the many chord presets. By pressing a few notes on your keyboard, you can create the harmonic basis of your new track. Obelisk works with any of your synths or samplers. Just set up your DAW to send MIDI from Obelisk into your synth. Please see the requirements to see if your DAW is compatible (most are!). Free demo version (10 minute limited)