- Lip slurs on the trombone are a fundamental technique for changing notes without tonguing, and they are one of the most important exercises for brass players. To take full advantage of the trombone's ability to produce various notes with the same slide position and fingering, controlling the oral cavity, tongue position, and aperture is essential. Mastering this technique enables you to freely command the instrument.
- By changing the size of the aperture, you control pitch—the aperture narrows as you ascend and widens as you descend. The aperture is the air gap at the center of the embouchure. Once you develop this control, you will be able to perform a wide variety of challenging pieces and build a solid technical foundation as a trombone player.
- The shape of the oral cavity, known as the syllable, becomes narrow with an "ee" shape for high notes and opens to an "oh" shape for low notes. If you prefer a rich, full tone, you can play with an "oh" shape, but if high notes are difficult, try using an "ah" or "ee" syllable. Additionally, the angle at which you direct the air stream into the mouthpiece is important—for high notes, angling the air slightly downward makes them easier to produce, while for low notes, directing the air straight into the mouthpiece works best.
- You can improve step by step by practicing lip slurs using the valve, ascending lip slurs starting from low notes, lip slurs with wider intervals, and fast lip slurs (lip trills). Lip trills in particular are an extremely challenging technique for beginners, but with daily practice, gradually increasing the tempo little by little, you will surely be able to master them.
In trombone playing, lip slurs are one of the most important fundamental exercises for brass players. Lip slur practice, alongside long tone exercises, is an essential element in building your technical foundation as a trombone player. The trombone is an instrument that can produce a wide variety of notes from the same slide position and fingering by changing the size of the oral cavity, the tongue position, and the aperture—the air gap at the center of the embouchure. Once you develop this control, you will become adept at freely commanding the instrument and be able to perform a wide variety of challenging pieces. The most important thing in lip slur practice is not to use tonguing. As a beginner, you may find it extremely difficult to change between notes, but it is important to practice step by step, from maintaining a continuous air stream to smoothly transitioning between notes with a slur.
Steps to Refine Your Tone
- Practicing Lip Slurs Using the Valve: Middle school students and others may not practice this often, but lip slurs using the valve are an important exercise. This is particularly effective in the low register. By using the valve, you can minimize slide position changes and focus on aperture control, making it ideal for building the fundamentals of lip slurs.
- Ascending Lip Slurs from Low Notes: Practice lip slurs that ascend sequentially from low notes. In this exercise, maintain a continuous air stream while gradually developing the sensation of narrowing the aperture. It is important to practice slowly and carefully until you can transition between notes with a slur from a state similar to playing long tones.
- Practicing Lip Slurs with Wider Intervals: Also practice lip slurs with wider intervals. This exercise involves connecting notes that are far apart in pitch with a slur, rather than just adjacent notes, and requires more advanced aperture control. Through this practice, you can develop a feel for aperture adjustments across various registers.
- Mastering Fast Lip Slurs (Lip Trills): Since the trombone has only one valve, it cannot perform trills using pistons or keys like other instruments. Therefore, fast lip slurs are used to perform trills. This is an extremely challenging technique for beginners, but it can be mastered by checking how fast you can perform lip slurs each day and gradually increasing the tempo. Set the metronome to tempo 60 and play sixteenth notes and sextuplets, then raise the tempo by about one notch each day during your practice sessions. By around tempo 80, you should be able to perform lip trills.
Lip slurs on the trombone are one of the most important fundamental exercises for brass players. By comprehensively mastering aperture control, syllable (oral cavity shape), and air stream angle into the mouthpiece, you can develop the technique to freely command your instrument. Starting with lip slurs using the valve, then progressing through ascending lip slurs from low notes, lip slurs with wider intervals, and fast lip slurs (lip trills), you can steadily improve by practicing in a step-by-step manner. Lip trills in particular are a highly challenging technique for beginners, but with daily practice, gradually increasing the tempo, you will surely be able to master them. Consistent, ongoing lip slur practice in your daily routine will build a solid technical foundation as a trombone player.
