What valves do you press for high f on the trumpet?

To achieve a high F on the Trumpet, you need to press down the first valve only. This lowers the pitch by a whole step, allowing you to play an F when combined with the open fingering. Playing a high F requires good embouchure control and air support to produce a clear and resonant sound. Practice long tones and lip slurs to improve your ability to play high notes on the trumpet.