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Every key

B♭ major: doh is B♭, 1 = B♭.

Where every solfa syllable and jianpu number sits in B♭ major, how each notation writes the key, and the keys a hymn in B♭ moves to.

The B♭ major scale in solfa and jianpu

Solfa and jianpu are movable do: the syllables and numbers name the steps of the scale, not fixed pitches. In B♭ major, step one is B♭, so this is what each one sounds as.

StepSolfaSaidJianpuNote
1 d doh 1 B♭
2 r ray 2 C
3 m mi 3 D
4 f fah 4 E♭
5 s soh 5 F
6 l lah 6 G
7 t ti 7 A

The next doh up, written with an octave mark above (a dot above the 1 in jianpu), is B♭ again, an octave higher. The doh-mi-soh chord, d m s or 1 3 5, is B♭ D F.

How each notation writes the key

  • Tonic solfa: a key line at the start, such as Key B♭ or Doh is B♭. Nothing else on the page changes with the key.
  • Jianpu: 1 = B♭ at the top left, beside the time signature.
  • Staff notation: 2 flats (B♭, E♭) in the key signature.

That is why moving a hymn into B♭ costs nothing in solfa or jianpu: you change the key line and every syllable stays where it was. The guide to transposing in solfa shows how to choose the new key for a choir.

Fe and ta: the two altered notes you meet most

SolfaJianpuNote in B♭What it usually does
fe ♯4 E Leans up to soh, often on the way into F major
ta ♭7 A♭ Leans down to lah, often on the way into E♭ major

Every raised and lowered syllable is in the tonic solfa primer.

The keys a hymn in B♭ moves to

A modulation in solfa is written as a change of doh, so the question is which note becomes the new doh.

  • Up to soh: F major. Soh (F) becomes the new doh, and the old fe (E) becomes the new ti. This is the commonest change of key in a hymn tune.
  • Down to fah: E♭ major. Fah (E♭) becomes the new doh, and the old ta (A♭) becomes the new fah.

The relative minor: G minor, on lah

G minor uses the same seven notes as B♭ major and centres on lah (G). Solfa keeps doh as B♭ and the tune simply settles on l. Jianpu usually states the minor on 6 instead: 6 = G. The guide to minor keys in jianpu explains why.

Hymns in B♭ in the library

Free, public-domain hymns that DomiSol's library prints with doh on B♭. Each opens in the editor, where you can move it to any key.

Questions people ask about B♭ major

What is doh in the key of B♭?

Doh is B♭. In B♭ major the solfa syllables d r m f s l t sound as B♭ C D E♭ F G A, and the doh an octave up is B♭ again.

How is B♭ major written in jianpu?

As 1 = B♭, at the top left of the score. The numbers 1 2 3 4 5 6 7 then sound as B♭ C D E♭ F G A.

How many sharps or flats does B♭ major have?

2 flats (B♭, E♭) in staff notation. In solfa and jianpu you write none of them: the key line (doh is B♭, or 1 = B♭) says where the scale starts, and the syllables or numbers carry the rest.

What is the relative minor of B♭ major?

G minor, which starts on lah (6) and uses the same seven notes. In jianpu a piece in G minor is usually written 6 = G; in solfa the key line still names doh (B♭) and the tune centres on lah.

Write a score in B♭

DomiSol is a free editor for tonic solfa and jianpu. Set the key to B♭, type d r m or 1 2 3, and press play to hear it at pitch. To find the note before the choir sings, the online pitch pipe plays B♭ and every other doh.

Every key

All twelve keys in one table