Wow! Seems like a valve Trombone or something! No slide could move that fast! If its made of brass.it's classic sounding like a fugue with dueling trombones. How unique. Love that feel! And throw in a trap set! Its invented now and it happens to be in the same room! So Uses it uses electric but the feel is authentic and a newer audience will apreciate the voiceings and timbre. Probably a little too demanding for the lips! Great job!