A trombone slide extension handle includes a handle portion, a neck portion, and a connector portion. The handle portion is a generally-oval shaped form sized to accommodate a human hand, and a groove portion shaped to accommodate fingertips of the human hand. The connector portion includes an open-ended, generally cylindrical connector having a wall portion with a circumference of approximately 270 degrees, and an opening portion between ends of the wall portion, the connector sized to accommodate a trombone slide handle and to securely hold the trombone slide handle, the ends capable of separation to attach to and be removed from the trombone slide handle.