This isn't particularly new
There's been plenty of people over at comp.sys.sinclair and World Of Spectrum who've experimented with various ways to play recordings into a ZX Spectrum - MP3 players, iPods, even (back in the day) minidiscs and the like.
There's even been programs tucked away on vinyl albums; I've even got vague memories of some magazine doing a flexidisc, and about a decade ago, I helped to slap together a loading screen for a "hidden" program on a CD album!
So yeah, it'll probably work, so long as they don't overcompress the audio.
Biting the hand that feeds IT
