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 (click image to enlarge) 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! Features: clear and easy interface number of steps selectable (up to 16) note per line selectable from 3 octaves with display several play modes (forward-backward, random etc.) syncs to host - clock divider adjustable sequence transpose by MIDI input MIDI ouput channel selectable automatable in the DAW sequences can be saved as VST plugin presets random play MIDI-ouput; any plugin or synthesizer can be used as sound source low on CPU free ! (only limitation is a nagscreen at the start) Available for Windows PC as VST-plugin. You’ll need a standard host program that sends correct VST sync information. Blip2000 is covered in the 06/2010 issue of the german Beat magazine and rated 5 of 6 points as a recommend plugin! Download now. No installer, no copy protection, just place the .dll file in the plug folder of your favourite DAW.      download plugin (only limitation: nagscreen on startup)            donate something to get the version without nagscreen After a donation of at least 10US$, the download link will be mailed to you. This may take some hours.   Why to donate if it’s free? - the startup nagscreen will disappear - by giving a little money you show your appreciation for the work of the developer - getting positive reactions gives us the motive to develop more plugins for you - help the developer to pay his bills - get the good feeling to not take only but give something back