I really hope you are in a better shape today! I don't think it is because of aging in your case, you seem young :) At least younger than me :D

We had some great musician that were blind... also those that were deaf.. but the combination of those two would give some challenges... it would be difficult to enjoy music, although you are right, we could still somehow feel the music. I think through some vibrations and frequencies that a musical instrument can provide us.