okay when he said reading music, i thought of sight reading.
well i know how to read music, but it does sucks for me nowadays. In terms of sight reading, it takes me a half an hour just to read one sheet of music, while professional musicians takes 2 minutes. But i know with practice, it will be perfect.
I think both reading music and playing by ear are the two good skills a musician should have.
well my church sings from the hymns all the time, so i think it is required for the musicians to read music.