I have known every combination of intellectually gifted and musically gifted, from gifted in both, to gifted in one, to gifted in neither. Intellectual giftedness helps with the knowledge component of music (reading music for an instrument, memorizing lyrics, music theory and history), but it can't substitute for intonation, rhythm, and musicality (artistry and emotion). One can be a good musician with only the latter set, but not the former.

...pronounced like the long vowel and first letter of the alphabet...