“Attuned” means being in harmony or receptive, usually followed by "to"; "Intune" is likely a misspelling, possibly intended as “in tune,” implying being in harmony or correct pitch in music.
(music) In an a cappella group, the singer responsible for singing a note for the other members to tune themselves by. Bob, our pitch , let out a clear middle "C" and our conductor gave the signal to start. Verb (es) To produce a note of a given pitch. To fix or set the...