Online Soprano Sax Tuner (B♭)
The soprano saxophone, straight or curved, is in B♭ and sounds a whole step below written: written C4 sounds B♭3, 233.08 Hz. This soprano sax tuner opens with the B♭ transposition on, so the note on screen is the one in your part, octave number included; the frequency underneath is the actual sound.
Written note and concert pitch
The soprano sax, straight or curved, is in B♭: the C in your part sounds B♭, a whole step lower, in the same octave. This page is the chromatic tuner already set to B♭: the note on screen, with its octave number, is the one in your part, and the Hz underneath are the actual sound.
| Written note | Concert pitch | Frequency (Hz) |
|---|---|---|
| C4 | B♭3 | 233.08 |
| D4 | C4 | 261.63 |
| E4 | D4 | 293.66 |
| F4 | E♭4 | 311.13 |
| G4 | F4 | 349.23 |
| A4 | G4 | 392.00 |
| B4 | A4 | 440.00 |
How to use it
- Tap Turn on microphone and check that B♭ is selected under Transposition.
- Warm up the sax, then hold written C5 without vibrato: it sounds concert B♭4.
- Flat: push the mouthpiece farther onto the cork. Sharp: pull it out, a little at a time.
- Check notes in other registers with your usual embouchure.
Help and explanations
In concert band, which usually tunes to concert B♭, play third-space C: it sounds 466.2 Hz. If the group tunes to A, play third-line B: 440.0 Hz. Flat: push the mouthpiece in; sharp: pull it out. To tune by ear, play along with the B♭ (or the A) of a keyboard or of the tone generator and adjust until the beating stops.
Tuning the whole sax section
In a section with soprano, alto, tenor and baritone, each player sees their own written note on screen. To tune everyone to the same concert B♭, soprano and tenor play C; alto and baritone play G. For concert A, soprano and tenor play B; alto and baritone play F♯. The alto sax tuner, the tenor sax tuner and the baritone sax tuner already open with the right transposition for each horn.
Sharp on top, flat at the bottom: mouthpiece or embouchure?
Tune a middle-register note first, then check the low and high notes. The mouthpiece position shifts the whole instrument, but each register also responds to embouchure, air and reed. If the gap between registers persists, ask a teacher before moving the mouthpiece any further.
Tips
- Switched from the straight neck to the curved one? Tune again: the mouthpiece may need a different spot on the cork.
- Band tuning to 442 Hz? Change Reference A; the transposition stays in B♭. See when to use it on the 442 Hz tuner.
- To compare with a piano or keyboard, switch to C (none): your written C shows as A♯, the same sound as B♭.
Frequently asked questions
What key is a soprano sax in?
The common soprano is in B♭ and sounds a whole step below written. For a soprano in C, select C (none), as the maker indicates.
Do straight and curved soprano saxes tune differently?
Straight and curved B♭ sopranos have the same transposition. Check the assembly and tuning of your own model; shape and key options vary between makers.
How do I tune a soprano sax?
Warm up, play third-space C (or third-line B if the group tunes to A) long and without vibrato and follow the arrow: up means push the mouthpiece in; down means pull it out. Once the note turns green, mark the spot on the cork with a pencil.
Why does my soprano sax go out of tune so easily?
Being small and high-pitched, it reacts more than the alto and tenor to changes in lip, air and tongue position. Set the mouthpiece and correct the rest with your embouchure.
Can I use the tenor sax tuner instead?
The tenor preset adds a whole step plus an octave to the detected sound; on soprano the octave shown would read one number too high. Use plain B♭ for soprano.