Push Pull is an instrumental Prototype developed By Till Bovermann, Dominik Hildebrand Marques Lopes and Amelie Hinrichsen. It combines mechano analog sound generation with digital sound synthesis. In 2015 it was awarded third place in the Margareth Guthman Musical Instrument Competition. A third iteration of the Push Pull Instrument is now available open source. Learn how to make one yourself here.
Hinrichsen, A, Hildebrand, D, Bovermann, T, Hardjowirogo, S. 2014. PUSHPULL: REFLECTIONS ON BUILDING A MUSICAL INSTRUMENT PROTOTYPE. InConference: ICLI 2014 / Inter-Face International Conference on Live Interfaces. [paper]