I have the M50s in my HT system, but I also listen to music in stereo. I think the mids from the M50s are very full, accurate and pleasant. I can't compare them to the M60s, but they compare favorably to the M3s and I think the mids are much better than those from the M22s.

Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.