
Originally Posted by
Karaley Dargen
I'm just curious – what electrical items do we see in work at the Weasley home? Since their radio is obviously magical, I wouldn't count that.
Concerning Muggle surroundings of St Mungo's, the Ministry, and Diagon Alley – I always assumed that there was a sort of shield charm that prevented magic from leaking out of these places. They do seem to be in sort of pocket dimensions (not really, but they are very much hidden from the outside), so I think it's plausible that they'd seal the magic away, too.
As for the original question, I think you could get away with it, but just to show that you haven't forgotten about potential magic interference, you could have the music player act up occasionally. Maybe there are permanent household spells in the house your OC is staying in, so while the laundry is folding itself, there's this little crackling sound, or it randomly switches to a different playlist mid-song.