Wiktionary
in tune
prep.phr. 1 (context music English) Having the correct musical pitch. 2 (context usually with "with" English) In a sympathetic relationship (with something or someone).
Wikipedia
In Tune
In Tune is a 1914 American silent short drama film directed by Henry Otto starring Charlotte Burton, Ed Coxen, George Field, and Winifred Greenwood.
In Tune (album)
In Tune is a 1971 studio album by Oscar Peterson, accompanied by The Singers Unlimited.