[proteal]

I haven’t followed it too closely, but he posted a video saying that previous iterations of the machine didn’t make good music. They were really loud (mechanical noise drowned out musical noise) and didn’t play music in time. In fact, the video from the submission has had its audio significantly edited to sound pleasing. I believe he posted the raw audio a few months ago in a video. His current design looks much more promising.

[vintermann]

I think it was also throughput and reliability issues. He gave up on it in connection with a marble tube bursting.

[DrSiemer]

The guys that actually finished it also agreed that it would not have been possible to tour with this iteration of the machine.