Changing the size of memory or changing the ROM version forces a reset of the PET.
The emulator has an IEEE-488 device at address 8. It can be used load and save (.prg) files.
Some programs don't run on ROM1 and some require more memory than the default 8K.
A music album created for Commodore PET, a personal computer from 1977 that barely featured any sound capabilities at all. This is the result of work that has been done by me for The 8-bit Guy's PETSCII Robots game, but did not make it into the final product. I took a creative freedom from there, and turned my code and music sketches into a stand-alone chiptune album. You may consider it an unofficial fan-made soundtrack of sorts.
The album features all-single channel music that creates illusion of few voices playing at once. This kind of music can actually play while a game is running on the machine. Songs take about 1000-1500 bytes of memory each.
Rendered from an emulator, sorry (PETs are a museum rarity here).
You can download this album as a PRG file to run on your PET. Compatibility between models is not guaranteed, you'll need a 40xx model with 16K of RAM. Source code is included: shiru.untergrund.net/files/faulty_robots.zip