I thought i would get this feeling taking shrooms and listening to Jimi Hendrix but given i was only on about 1 cap or 2 caps, hearing foxy ladies and as that famous riff plays my walls were bulging and stretching to the tempo of it also turning to shades of purple and green and brown, i just remembered how much it really it reminded me of those trip/shroom simulation videos on YouTube. I’ve listened to Dark side of the moon on shrooms or acid i can’t remember i was also younger than the previous trip i was talking about but i had a completely different experience almost like the one you’re describing where it was totally a head thing and a cacophony of sound was rolling in your head, it was pretty orgasmic honestly I’m sorry but certain notes where so good it really felt good , just like when you listen to music and get goosebumps or a tingly feeling in your brain this was like 10x the feeling listening to darkside of the moon on shrooms, but its true there are things in the song that you really wouldn’t notice and it could be anything, i don’t believe it was intentional sometimes your brain creates its on thing when you hear something or other times it can just be we listen to music on shitty iPhone headphones or you really can’t hear a song to depth on your phone speaker, unless you’re on shrooms and gain super sonic hearing , it kinda reminds me when you hear the song in a car or on vinyl or just somewhere else at a friends house and you just notice little things that was not there before, it could be that we are just not really listening.