First, the trombone playing skills are analyzed from the aspects of mouth shape, blessing, breathing, intonation and tongue movement. The mouth shape of playing trombone includes the coordination and adjustment between teeth, mandible, labial muscles and chin. For beginners, it is necessary to spend more energy and time to practice playing trombone, and put the lower corner of trombone into a reasonable lip, and the inclination of trombone mouth is 75 degrees.

Second, the mouth shape of trombone cannot be simply understood as the mouth shape of lips. This is a complicated problem. The relevant parts of the performer need good changes, control and mediation to prepare for pronunciation. Whether the mouth shape is accurate plays an important role in pronunciation. Because everyone's labia muscles, jaws and teeth are presented in different natural forms, the choice of mouth shape is suitable for everyone.

Third, the trombone plays in the bass area, with a rough voice and a slight rustle. The lowest two sounds are rarely used. The middle range of trombone playing: bright and round when playing weakly, and ringing when playing strongly. Trombone playing high-pitched area: pronunciation is a little nervous. Extremely high notes are difficult to play and the sound quality is not pure.

Fourth, trombone playing skills trombone plays different pitches. First, by changing the pressure of lips, natural overtones can be blown out; The second is to rely on the expansion and contraction of the sound tube (changing the length of the sound tube). Therefore, trombone is not as flexible as other brass instruments in playing. When the speed is not fast, you can play scales, chromatic scales, beats within octaves and chord analysis.