headcanon that Encom programs and human Users have almost entirely non-overlapping preferences in music

most program music sounds like incomprehensible machine noise to Users, and most User music sounds like pretty much the equivalent to a program

it’s possible for either side to acquire the taste for the other, but it’s rare

further headcanon: the whole artistic range of the Wendy Carlos soundtrack represents the entirety of the overlap in which music will generally appeal to both programs and humans. (Even the most User-friendly program music will still strike humans as having that sort of… beautifully eerie, otherworldly quality to it.)

screenshot from the Tron 1982 novelization, which reads: Ram, in the next cell, was holding his disk up, edge-on, examining it closely for any imperfections. He was whistling an eerie, lilting tune that Flynn didn't recognize as any User music. Flynn drifted over that way; he'd had little time to talk to Ram and none at all to speak to the next prisoner along.