midi to ableton - no sounds! !HELP!

Hi guys! if got a problem with ableton. my trying to setup a webcam piano like this: ( it´s just version 1 - my version is made with processing).

so processing tracks my movement and sends a osc, osc comes to osculator and is now a midi signal - but when i try got use it in ableton with a midi instrument - nothing happens. maybe there are some wrong startup settings -
can somebody please help me? here are 2 screenshots: ( note - when i move, the squares in osculator are flashing green)