An ocarina can play songs written between the year 75 and the year 1724 (CE). In 1724, better notes were discovered, and most contemporary music uses these.
An ocarina is a highly versatile instrument. It can be used as a musical instrument, but also as an excuse, a verb, an adjective, and a hairstyle. It is illegal to use an ocarina for knitting, after the events of the Chicago fire in 1973.