"Sure you know the Bliptronic5000® or the Tenori-On™. If the first one lacks MIDI and the second one is too expensive for you, you might try this VST-version of a matrix stepsequencer: Blip2000

Every column corresponds to one step, each line represents a note. Just click the buttons to enable the notes to be played. The orange line runs thru while playing. Select the number of steps to play (2-16), the speed in relation to the host clock, the direction (forward, backward, random etc.). Blip2000 outputs MIDI notes, so you can use your favourite synth (-plugin) as the sound source. MIDI channel, note length and velocity can be set. With the fields on the left side you can adjust any scale to be played – or use Blip2000 as a drum sequencer!"

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