Abstract: A mounting apparatus that secures a musical instrument to a bench of a bleacher is provided. The apparatus includes a base member having an elongated member connected to a lower plate, a support peg coupled to the elongated member of the base member and designed to support the musical instrument thereon, a leg slidably mounted to the internal cavity of the elongated member of the base member, and a pair of arms pivotably mounted to the lower plate of the base member. The apparatus is disposed on the bench and the leg slidably adjusts relative to the base member to an engaged position with the leg in contact with the front face of the bench. The pair of arms pivotably adjusts to an engaged locking position with the legs in contact with the rear face of the bench, thereby enabling the apparatus to secure the musical instrument on the bleacher.