Today's words

Today's WOTD has an etymology that has resulted in some pretty significant differences in meaning between some closely related words . . .

ritornello \'rih-tur-NEH-lo\ - 1a. a short recurrent instrumental passage in a vocal composition  b.  an instrumental interlude in early opera  2. a tutti passage in a concerto or rondo refrain

I love learning new musical terms. (Not so much as to make me actually formally study music, mind you.)