A percussion instrument spinner comprises a mounting structure having an integral swivel allowing the drum or instrument to rotate. The design is especially suited to marching bass drums. The spinner includes a locking mechanism in order to position the instrument's rotated position and fix it from further rotation. The spinner also includes two eyebolt-type mounts to allow it to be easily placed on a carrier, and two support bars which perform dual functions: 1) Holding the instrument at the proper height for the player, and 2) Supporting the instrument in a stable manner when the instrument is placed on the ground, with the edge of the instrument held off the ground to allow the heads to vibrate freely. The drum or percussion instrument with spinner is easily and removably attached to a carrier which the performer wears on their body in order to be able to move about and/or march while playing.