The Sonic Fabric dress is made from recycled audio cassette tapes. The tape is woven into a fabric, but retains its magnetic quality. So in theory, you could still play the music if you had a device to read the fabric. I hope you're wearing a cool song.
You can also purchase a Monk / Messenger Bag, swatches of the sonic fabric or larger sheets that you can use to create your own Sonic Fabric apparel.