paramusia

par·a·mu·si·a

(par'ă-mū'zē-ă),
Loss of the ability to read or to render music correctly.
[para- + G. mousa, music, + -ia]

paramusia

(păr″ă-mū′zē-ă) [″ + mousa, music]
A form of aphasia in which the ability to render music correctly is lost.