A mad portable... wait, I think there's already a name for that.
Wait what music is it playing? Two redundant treble clefs, a key signature that doesn't exist, and no apparent melodic line? Either this is hardcore avant-garde stuff or someone decided to slap a bunch of random notes together.
Etsy seller Will Rockwell made this "audio amplifier" from a trumpet. There's no electronics or circuitry - the acoustics of the victrola amplifies the iPhone's music on its own.
As always, stay tuned for this week's Historical Thursday. Coming up soon....