1. Maracas: These are a pair of shaped rattles that are made by filling dried gourds with seeds or small stones. they are common in Latin American and Caribbean music.
2. Mandloin: A mandolin is a guitar - like instrument with a pear - shaped body and four strings. It is commonly used in bluegrass, classical and folk music.
3. Marimba: A marimba is a percussions instruments consisting of a set of tuned wooden bars that are arranged like the keys of piano. It is played with mallets.
4. Mellotron: A mellotron is an electromechanical keyboard intrument that uses pre - recorded tapes to produce the sounds of various musical instruments.
5. Melodica: A melodica is a free - reed instrument. It is a kind of keyboard that incorporates a small mouthpiece, like that of a harmonica.
6. Mridangam: A mridangam is a double - headed drum that is widely used in Carnatic music of South India. It has a cylindrical body made from jackwood and is played with hands.