These instruments are also known as xylophone or xylophonium) are a type of percussion musical instrument. The instruments name is from the Ancient Greek words xylon (wood), and phonos (voice). It is a member of the family of percussion instruments, which also includes the drum, the gong, and the cymbal. The xylophone was originally made from wood, but nowadays you can also get ones made from metal although this instrument is usually referred to as a metallophone. These instruments are used in a variety of music genres, including classical, jazz, rock, and pop.