Melodica

The melodica, also known as the "pianica", "blow-organ" or "key-flute", is a free-reed instrument similar to the melodion 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. The keyboard is usually two or three octaves long. Melodicas are small, light, and portable. They are popular in music education, especially in Asia.