Jo-Ral 3510 Trumpet Brass Short Cut 3510 Trumpet Brass Short Cut The Jo-Ral 3510 Trumpet Short Cut is an innovative new helper to the brass player The Jo-Ral short cut allows you to do warmups, slurs and tonguing without using your trumpet It is excellent for extending practice time, improving embouchure, and as a lip builder The Short Cut is a piece of copper tubing with 2 holes, a ventura at the top and a bell-shape at the bottom