I like to try new engines and this time it was squeeker plus. Very powerful sound, ideal for rock.
I was on a diet of bands such as Judas Priest and Death before I wrote it

https://events.retroscene.org/dh2025winter/beeper

"Beyond the Void"
> "...My first attempt with this engine and only my 2nd rock track. "
Pretty good all out rock tune !  Quite catchy.

I especially enjoyed "unguided filter", is it your work Utz?

Regarding looping PWM samples, I've got an idea for a design that would be relatively cycle-efficient. We need to check for the end marker anyway, right? If we put a loop pointer immediately after the end marker, that loop pointer could either point to the end marker itself (effectively stopping sample playback) or to some arbitrary position in the sample (actual loop). The only caveat is that the encoder needs to ensure that 1) the phase is not accidentally inverted by the loop, 2) state is 0 at the end of the sample, and maybe 3) the length of the last half-cycle before the end is reduced by 1. This would rule out extending PWM half-cycle length beyond 255, but I think we can live with that since we can pitch down anyway.

This is a weird one, but may be a nice fit for the beeper: noise art. Includes an oldschool computer noise music, which is music made of noises. Seems to be a good case for the noise channels in our beeper engines, if you're in the experimental mood.

I'm thinking dedicated tone channels might not even be necessary since they can be "emulated" with PWM samples. Even simple chords should not be too expensive in terms of memory usage. Maybe 3 sample channels can be done instead? Don't know how feasible that would be in terms of overloading. The same applies to additional tone channels, of course. For example, I tried using some longer breakbeat samples in Squat. That almost completely drowned out the tone channels.