Pet-Tune-Ya! Digital music from the Commodore PET

Wow! That is really cool!

Very good! Didn't know that existed. Excellent video. Do you know where the schematics are located? Would like to build one with external monitor support

Thanks for showing this obscure device. :) I find it a bit strange that there were only versions for BASIC 1.

Great to see the Petunia in action. I didn't know about the PET-Tune-Ya origins of the name; makes sense it would start with a bad pun.

Wow! This is amazing and sounds great! I never knew the PET was so capable of such sounds. Thank you for sharing!

What about making an IEEE-488 "sound card" with either a SID or Yamaha chip?
I feel the interface is so underutilized. There could be a real time clock device number too.

Somehow the music doesn't play on my phone :/

What the world needs is a determined soul willing to spend the effort to write a translator program to turn Orchestra 80/85/90 music (a similar simple DAC for the TRS-80 family of computers) into Petunia tunes. There's a lot of Orchestra 90 stuff floating around out there, and it sounds pretty similar to this.

This is very interesting in that the sound is almost the same as that of the (later?) Tandy coco/dragon 32. I wonder if they used the same process? It was odd because you only got one channel in basic, but in machine code multiple voices were possible. But that sound is so very similar. I suppose this would be output from the 6520, the coco uses a 6821 which in essence is the same chip. I must look out the schematic. Thanks for sharing:)

The parts with direct audio recording around 8 minutes or so are silent. Copyright strike?

Nice that you found the original board! I always thought I'd make a reproduction of it (please not only resistors though!), but you know, some projects are delayed forever....

Excellent product and video Do you happen to have the schematics for the PETunia with both audio and video out?

I am Steve Barham .. Chuck is right, I did program them into the Petunia myself off of the sheet music. It is soooo amazing to hear it work again, as my PET 2001 got fried back on 1983.... 😢😢😢😢
I am so glad the board still worked.