The water keys in your photo have no pads. If they are fully closed they are not likely leaking. But check them as suggested anyway. The tone you are describing may be the result of trying to buzz the mouthpiece as opposed to letting the air produce the buzz. Get a copy of Mystery to Mastery: Yamaha trumpet artist Greg Spence offers you trumpet books free video trumpet lessons how to play the trumpet demonstrations articles the world's first trumpet eBook for beginner trumpet players who are learning how to play the trumpet this online tr or get some lessons. You don't need to buzz your lips, they will produce a buzz if you set your chops right and blow into the horn.