News Summary

• The COMB Optical Music Box uses a Raspberry Pi Pico to play music.
• It takes notes from the old punch card devices of late and turns them into a more modern, DIY-able version.
• If you'd like to make your own music cards, there are a few GitHub links you should check out.
• The music is encoded in base 5: 4 instrument channels, each with 3 digits with a 75 notes range and 50 instrument options, and finally, 1 checksum digit.
• It works similarly to those older music machines that ran off punchcards.