Father of MP3 Player

This is surely a case of Life imitating Art - from the story "The Martian Shop" by Howard Fast, originally published in the Magazine of Fantasy and Science Fiction, 1959:

"....it was of pale yellow synthetic...Two slight depressions on the top of this box activated it, a slight touch of one depression to start it, a second touch on the same depression to stop it. The second depression , when touched, changed the category of music desired. There were twenty-two categories of music available...the music box could be compiled out of available technical knowledge, specially since the discovery of transistor electronics...that a content of eleven thousand works was beyond present day knowledge and skill..."