How to get a better sound on trombone

A good trombone sound is full, warm, and steady. It doesn't come from a special trick. It comes from steady air, a relaxed body, and a few minutes of tone practice every day. This guide shows what to listen for and how to fix the most common problems.

What a good trombone sound is

Tone is what your sound is like, apart from which note it is. A full tone has a warm center and carries without being loud. Listen to these. They are all the same note:

You can't play a sound you've never heard. Listen to recordings of great trombonists, pick a sound you love, and try to copy it.

Steady air

Air is the engine of your sound. Trombone takes a lot of it, and it has to keep moving at the same speed. If the air speeds up and slows down, the sound wobbles.

• Breathe in deep and low. Your belly and sides grow and your shoulders stay down. Breathe through your mouth with an open "oh."
• Breathe and play in one motion. Don't hold your breath before the note. Holding it locks your throat and makes the start late or bumpy.
• Blow a long, smooth line. Imagine the air going all the way past the end of the bell and across the room.
• Warm air, not cold. Blow like fogging a window, not like cooling soup.
• Plan your breaths. Breathe before you run out, so the end of a note doesn't sag.

For more ways to build your air, see breathing exercises for brass players.

Stay relaxed

Tension squeezes your sound and makes it thin, or "pinched." Check these while you play:

• Throat open, like saying "oh."
• Shoulders down, arms loose. Your left hand holds the weight; your right hand only moves the slide. Gripping the slide tightens everything else.
• Light mouthpiece pressure. Pressing pinches your lips and tires them out. Use only enough to keep a seal.
• Room inside your mouth. Let your jaw drop a little as you go lower. Low notes need more space.
• Medium volume. Blasting makes a trombone harsh and brassy long before it makes it bigger.

Long tones

A long tone is one note held for a long time, with a steady, clear sound. Long tones give you time to listen and adjust. On trombone they're slide practice too: moving out one position at a time walks down by half steps.

• Start where it's comfortable. F, E, and E♭ at a medium-soft volume. Range and loudness can come later.
• Grow it over time. Add notes below and above as your range grows. The goal is long tones from the lowest note you can play to the highest.
• Same sound start to finish. No fading out, no wobble, no swell you didn't mean.
• Quick slide, then still. Move to the next position quickly, then let the slide rest while the note sounds.
• Play with a drone on the same note. Listen for the "wah-wah" beats, then move the slide a tiny bit until they stop. See playing in tune.
• Check with the tuner. A steady needle means steady air.

Lip slurs

A lip slur moves from one note to another without moving the slide or using your tongue. Only your air and buzz change. Lip slurs are great for your tone, because they teach you to keep the air steady while the note moves.

Play each pattern in 1st position, then repeat it in every position going out: 2nd, 3rd, and on to 7th. Each position is a half step lower. Once you get the hang of these, make up your own patterns. Any notes that share a position will work.

• Go slowly. Every note should sound as clear as a long tone.
• Keep the air moving between notes. The sound shouldn't dip or bump.
• Faster air to go up, slower air to come down. Don't press the mouthpiece harder to reach the top note.
• Cracked a note? Slow down and try it again, softly.

Clean note starts

A clean start sounds like the note is simply there, right away: no burst, no "puh," no scoop up to the pitch. The tongue only lets the air go. It doesn't push it.

• "Tah" or "dah," behind your top teeth. The tip of the tongue touches just behind the top teeth and drops away. "Dah" gives a softer, smoother start.
• Air and tongue together. If the tongue moves before the air is ready, the note cracks or comes out late.
• Hear it first. A start that cracks often means you weren't sure which note in the position you were aiming for. Hum it, then play.

Fuzzy or thin sounds

Most tone problems fall into two groups. A fuzzy or airy sound means some air is getting through without buzzing. A thin or pinched sound means something is too tight.

Try buzzing on the mouthpiece alone. If the buzz is fuzzy there too, the problem is your lips or air, not the trombone. If the problem started after a while, go back over mouthpiece placement and buzzing.

A 10-minute tone routine

• 1 minute: breathing. In for 4 counts, out for 8 on a steady hiss.
• 1 minute: mouthpiece buzzing. Long buzzes and slow sirens.
• 3 minutes: the long tones above, with a drone or tuner.
• 2 minutes: the clean-start exercise above.
• 1 minute: one lip slur pattern from above, in every position you can reach. Slow and smooth.
• 2 minutes: a song you know, played softly with your best sound. Record it on a phone and listen back.

Then use Play the Note in Brass Trainer. Hold each note for a moment before moving on. The microphone checks the pitch, and you get to practice a clean start on every note.