Trumpet Tuner
This trumpet tuner listens through your microphone and shows your note as a B♭ trumpet player reads it, so written C shows as C, not concert B♭. Play a long note and the needle tells you whether to push in or pull out.
Play a tuning note
The microphone is only used while the tuner runs. Sound is analysed on your device and never recorded or sent anywhere.
Trumpet tuning notes
The trumpet is a transposing instrument, so the note you read is not the concert pitch the band tunes to. These are the usual tuning notes as you read them and as the tuner hears them, at A = 440 Hz.
| Written (B♭ trumpet) | Concert pitch | Frequency |
|---|---|---|
| C5 | B♭4 | 466.16 Hz |
| G4 | F4 | 349.23 Hz |
Not sure of a fingering? The trumpet fingering chart shows every note and plays it at the right pitch.
How to tune a trumpet
- Warm up for a few minutes so the air inside the trumpet is at playing temperature.
- Play written C (third space) with a full, relaxed sound and hold it.
- Move the main tuning slide, the big curved slide in front of the valves. Needle left (flat): push it in. Needle right (sharp): pull it out.
- Check written G on the second line. If C is in tune but G is far off, listen to how you are buzzing rather than moving the slide again.
Using the valve slides
The first- and third-valve slides are there to fix notes that the main slide can’t. Valve combinations add tubing that is slightly too short, so 1 + 3 (low D) and 1 + 2 + 3 (low C♯) come out sharp. Push the third slide out with your ring finger as you play them, and use the tuner to learn how far. If your trumpet has a first-valve slide saddle, it does the same job for other sharp notes that use the first valve.
Reading the tuner as a trumpet player
The big letter is your written note. Underneath, the tuner also shows the concert pitch and the frequency, which helps when your director says “concert B♭”. If you play C trumpet, pick it in the menu so the letters match your part.
Trumpet Tuner FAQ
What note does a trumpet tune to?
In concert band, trumpets usually tune on written C (third space C, C5), which sounds concert B♭. Written G on the second line (concert F) is a common second check. This tuner shows written notes, so aim for C and G.
My trumpet is flat. What do I do?
Push the main tuning slide in a little, then play the note again. If it is sharp, pull the slide out. Warm up first: a cold trumpet plays flat and rises as you play.
Why does a regular tuner say B♭ when I play C on trumpet?
A B♭ trumpet sounds a whole step lower than written. Concert-pitch tuners show the sounding note (B♭). This page is set to B♭ trumpet, so it shows the note you read. Switch to concert pitch in the menu if your director asks for it.
Which trumpet notes are out of tune?
Low D and low C♯ (1+3 and 1+2+3) are sharp: kick out the third-valve slide with your ring finger. Top-space E and the D and E♭ just below it tend to be flat. The tuner makes these easy to hear for yourself.
Does this tuner work for C trumpet?
Yes. Choose C trumpet (concert pitch) in the menu and the tuner shows the sounding note, which is what a C trumpet player reads.
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