B♭4 on the Alto Saxophone
To play B♭4 on alto sax: Left hand: 1, 2 + side B♭ key.
Play along: hear the note for 2 beats, then you play it for 2.
- Left index key
- Left middle key
- Side B♭ key
Two other B♭s are in constant use — the one-finger bis and the "one-and-one" — and choosing between them by context is what makes flat keys and chromatic runs feel easy.
Two other B♭s are in constant use — the one-finger bis and the "one-and-one" — and choosing between them by context is what makes flat keys and chromatic runs feel easy.
Sound and display
Next moves
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Alternate fingerings for B♭4
Each alternate has its own link. Send it to a student and the page opens with that fingering on the big diagram.
- Alternate 1Bis B♭ (left index on the B and bis keys)Left index key + Bis key. In flat keys — B♭, E♭ and A♭ major — where the passage has no B natural next to the B♭.
- Alternate 2One-and-one B♭ (left index + right index)Left index key + Right index key. When the B♭ is next to F, so the right index finger is already down and only the middle and ring fingers move.
More for advanced players
Written and sounding pitch, and how the note works
About this note
B♭4 is written B♭4 and sounds concert D♭4.
The standard modern B♭ is left index and middle fingers with the side B♭ key pressed by the knuckle of the right index finger; it moves cleanly to both A and B natural. Two other B♭s are in constant use — the one-finger bis and the "one-and-one" — and choosing between them by context is what makes flat keys and chromatic runs feel easy.
- Primary fingering: Left index key + Left middle key + Side B♭ key
- Written pitch: B♭4 · Concert pitch: D♭4
- Sounding frequency: 277.18 Hz
What to press, key by key
- Left index key
- Left middle key
- Side B♭ key
Alternate fingerings for B♭4
- Bis B♭ (left index on the B and bis keys): Left index key + Bis key. In flat keys — B♭, E♭ and A♭ major — where the passage has no B natural next to the B♭.
- One-and-one B♭ (left index + right index): Left index key + Right index key. When the B♭ is next to F, so the right index finger is already down and only the middle and ring fingers move.
Questions
How do you play B♭4 on alto sax?
To play B♭4 on alto sax: Left hand: 1, 2 + side B♭ key. B♭4 is written B♭4 and sounds concert D♭4. Press: Left index key, Left middle key, Side B♭ key.
Is B♭4 written or concert pitch?
The name on this page is the written note you read. On E♭ alto sax it sounds concert D♭4.
Is there another fingering for B♭4?
Bis B♭ (left index on the B and bis keys): In flat keys — B♭, E♭ and A♭ major — where the passage has no B natural next to the B♭. One-and-one B♭ (left index + right index): When the B♭ is next to F, so the right index finger is already down and only the middle and ring fingers move.
Alto Saxophone fingering data last updated . Every diagram here, in the printable PDF and in the chart image comes from one dataset, so the paper and the screen cannot disagree.