OP-Z and Legos are a match made in heaven : r/MusicBattlestations
downloads - teenage engineering
Amazon.com: teenage engineering OP-Z portable synthesizer and multimedia sequencer with wireless bluetooth connection - compatible with unity game engine, mac, ios, and android devices : Musical Instruments
OP-Z Lego - Colour Coded Knob Set Upgrade 4 knobs plus shafts | Reverb