BOUNCY PLAYGROUND by Brock Davisson
Just a bouncy cool thing I like, you may enjoy it. Throw some reverb and delay on it for more fun. Also play with the Attenuator 2 to change the color of the patch and of course the LFO rate knob for slower or faster bounce. Throwing on some porta time is fun as well. Tune 2nd OSC to a 5th. If you hit a C for the 1st OSC and it's in tune, then hit the C again for the 2nd OSC and it should be in tune with a G note.