Music moves all of us. It lifts us, makes us feel, and can even bring us back to a different time. One digital creator is spreading joy with music—using just a mini retro Fisher-Price cassette player.

If you still own a Fisher Price cassette player, it’s probably buried deep in some ‘80s nostalgia-filled corner of your closet. But where most of us see a beloved electronic fossil, Matt Gruskin saw a ...

A good hacker hates to throw away electronics. We think [Matt Gruskin] must be a good hacker because where a regular guy would see a junky old 1980’s vintage Fisher Price cassette player, [Matt] saw a ...