How to slur notes on brass
A slur is what makes a brass line sing — two or more notes connected so smoothly you can't hear a seam. The trick isn't your fingers or your tongue; it's your air. Here's exactly how slurring works and how to make yours effortless.
When you slur, you start one note with the tongue and then move to the next note (or several) without tonguing again. The air never stops, so the notes flow into each other like one long breath. On trumpet, horn, baritone, and tuba you change the pitch with your valves and lips; on trombone you use the slide and lips. Either way, the secret ingredient is the same: steady, continuous air.
Learn it by playing
Slurs lock in fastest when you're aiming at real notes. Brass Blaster listens to your horn and asks you to hit the right pitch — perfect for testing smooth connections.
1. What a slur actually is
On the page, a slur is a curved line drawn over (or under) a group of notes. It tells you to play them legato — connected, with no break and no separate attack on each note. Compare two ways of playing the same four notes:
- Tongued: "tah-tah-tah-tah" — each note gets its own little start from the tongue.
- Slurred: "tah—————" — one start, then the pitches change underneath one continuous stream of air.
So a slur is really an instruction about your tongue: keep it out of the way after the first note.
2. The air does the work
This is the single most important idea: during a slur, your air must stay full and constant, even as the notes go up or down. Beginners instinctively back off the air when the pitch changes, which is exactly what makes slurs sound lumpy or break.
Try this without your instrument: blow a steady stream of air at your hand and keep it perfectly even for four seconds. That unbroken stream is the foundation of every good slur. Now imagine the notes changing on top of that stream while the stream itself never wavers.
3. Slurs that use valves or the slide
When the slurred notes use different fingerings or slide positions, the change happens between two notes that aren't naturally next to each other. The keys here are timing and speed:
- Move fast. Press valves down quickly and all the way; for trombone, move the slide with a quick, smooth motion. A slow valve or slide creates an audible smear.
- Move in time with the air. The valve change and the moment your air carries you to the new note should happen together — not before, not after.
- Keep the air going through the change. Don't let a "blip" of dropped air sneak in while your fingers move.
4. Lip slurs: changing notes with no valves at all
Some slurs happen between notes that share the same fingering — different notes in the same harmonic series, like the open notes on a bugle. These are called lip slurs, and you change pitch purely with your air speed and a subtle shift in your embouchure and the inside of your mouth. They're the best workout for the flexibility that makes all slurs easier.
- To go up, the air gets faster and the corners of the embouchure stay firm; many players think of the syllable shifting from "tah" toward "ee."
- To go down, the air slows slightly and the mouth opens a little, like shifting toward "oh" or "ah."
Want the full method? See our learn guides and our companion articles on lip slurs.
5. A simple practice routine
- Two notes, slow. Pick two notes a step apart. Tongue the first, then move to the second on a steady breath. No bump? Good.
- Add a third and fourth. Slur up and back down: 1‑2‑3‑2‑1, keeping every note inside one unbroken stream of air.
- Lip slurs daily. A few minutes of slurring between open notes builds the flexibility everything else relies on.
- Listen back. Record yourself. A clean slur sounds like one continuous sound that simply changes pitch — no clicks, dips, or smears.
Common mistakes to fix
- Sneaky tongue. If you hear a separate start on each note, your tongue is still articulating. Keep it parked after the first note.
- Air that dips. Breathe before the phrase and commit; let the air stay strong all the way through.
- Lazy fingers. Half-pressed valves between notes cause gurgles and cracks — push fully and quickly.
- Pressing harder for high notes. Reach upper notes with faster air, not by mashing the mouthpiece into your lips.
Make the reps less boring
Smooth slurs are built one clean rep at a time, and reps are easier when they're fun. Brass Blaster turns hitting the right note into an arcade game: play the correct pitch on your real horn and you blast the swarm. It's a great way to chain notes together and hear instantly whether you're landing each one cleanly — transposition is handled for you, so you just play.
Play the arcade
No sign-up, no install. Warm up, then chase smooth, connected notes one round at a time.
Frequently asked questions
What does it mean to slur on a brass instrument?
Slurring means connecting two or more notes smoothly without re-articulating each one with the tongue. You start the first note with the tongue, then change pitch using your air and embouchure (and valves or slide) while the air keeps flowing.
Do you tongue when you slur?
Only the first note of a slur is tongued. The notes inside the slur are connected by continuous air, not by the tongue. The tongue stays out of the way until the slur ends or a new articulation begins.
Why do my slurs sound bumpy or break?
Bumpy slurs usually come from air that dips between notes or valve and slide changes that are not synchronized with the air. Keep the air steady and full, and move valves quickly and exactly with the change of pitch.
Keep learning: Instrument transposition · Ear training · all guides · more articles