Interesting concept and very intriguing picture. The shape of the round mirror is dominant in a positive way as it helps the picture to stand out and frames the view to the bed in an unusual way. Instead of being a reflection of that same room, I'd rather think it as a kind of wormhole, a passage as opened to some place else entirely as the music on that record is being played.
However, one small question remains... Namely, is it possible even for a magical recordplayer to play music when the cartridge is in its holder instead of on the record itself..? Depending on the answer, you might need a revisit for a second take on this with the music 'on'.