a kind of harmonica on which you blow and play notes by means of keys

The melodica is a free-reed instrument similar to the accordion and harmonica. It has a musical keyboard on top, and is played by blowing air through a mouthpiece that fits into a hole in the side of the instrument. Pressing a key opens a hole, allowing air to flow through a reed.

Melodica is an EP by Blackalicious, released in 1994 on the Solesides label (see 1994 in music).