An old-school mix machine! Things to try: -Turn on and off beets. -Create chords by combining different notes within the same beet with the same instrument (or mixing different instrument sounds). -Using the same instrument, make a chord with close notes (this will give a cool echo effect). -Sampling every 16 beats. -Change the notes as it plays, to give it variation. -Very high notes or very low notes.
Instruments 1-21 are from the Scratch library, which aren't particularly great, but you can get some interesting sounds by playing around with the pitches. Instruments 22+ are some synthesizer and Hammond organ sounds I found on Pixabay.com. Currently they are only in Ivoice1... I'm in the process of adding them to Ivoice2 and 3.