Some teachers insist beginning students learn the best technique by first starting with “buzzing.” A vibrating sound is made by forcing air out of the lips while they are tightly pursed. It’s not as easy as it may sound. It should be practiced first without the horn. Try doing this while changing pitches up and down the scale, or “sing-buzzing” different tunes. From this simple beginning, a student then progresses to buzzing into the mouthpiece. After success with this drill, students learn to change pitches, and with much practice will develop a decent tone when they play their trumpet. Practice is key to playing the trumpet well, despite its seeming simplicity.