The build process is described in the PDF under Files.
The machine playing:
The machine explained:
For those who follow the Marble Machine by Wintergatan, the project was featured there in this episode (22min:07sek). Thank you Martin for the inspiration!
As a trombone player for the past 17 years, I love everything about this. I initially clicked the thumbnail to see how you figured out the nuances of the lip control, I think the lack of control adds to the novelty of this project. I love your over-engineered noise machine.