Girish Mahajan (Editor)

B flat major

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Relative key  G minor
Dominant key  F major
Parallel key  B♭ minor
Subdominant  E♭ major
B-flat major

In music theory, B (B-flat) major is a major scale based on B♭. The pitches B, C, D, E, F, G, and A are all part of the B♭ major scale. Its key signature has two flats.


B major's relative minor is G minor, and its parallel minor is B minor.

Many transposing instruments are pitched in B-flat major, including the clarinet, trumpet, tenor saxophone, and soprano saxophone. As a result, B-flat major is a popular key for concert band compositions.

In Nordic, Baltic, Western and Southern Slavic (except Bulgarian) languages, Hungarian, German and most Central and Northern European languages, the pitch B is called "H" while B♭ is called "B".


Joseph Haydn's Symphony No. 98 is credited as the first symphony he (or anyone else) wrote in that key in which he included trumpet and timpani parts. Actually, his brother Michael Haydn had written one such symphony earlier, No. 36, though Joseph Haydn still gets credit for writing the timpani part at actual pitch with an F major key signature (instead of transposing with a C major key signature), a procedure that made sense since he limited that instrument to the tonic and dominant pitches. Many editions of the work, however, use no key signature and specify the instrument as "Timpani in B-flat–F".

Five of Mozart's piano concertos are in B-flat major.

Notable classical compositions

  • Brandenburg Concerto No. 6 (Bach)
  • Piano Concerto No. 15 (Mozart)
  • Piano Concerto No. 27 (Mozart)
  • Piano Concerto No. 2 (Beethoven)
  • Symphony No. 4 (Beethoven)
  • String Quartet No. 6 (Beethoven)
  • String Quartet No. 13 (Beethoven)
  • Große Fuge (Beethoven)
  • Piano Sonata No. 11 (Beethoven)
  • Piano Sonata No. 29 (Beethoven)
  • Mass No. 3 (Schubert)
  • Piano Sonata No. 21 (Schubert)
  • Symphony No. 1 "Frühling", Op. 38 (Schumann)
  • Humoreske for piano Op. 20 (Schumann)
  • Symphony No. 2 "Lobgesang" (Mendelssohn)
  • Piano Concerto No. 2 (Brahms)
  • String Quartet No. 3 (Brahms)
  • String Sextet No. 1 (Brahms)
  • Variations and Fugue on a Theme by Handel, for piano (Brahms)
  • Symphony No. 5 (Bruckner)
  • Symphony No. 5 (Prokofiev)
  • Piano Concerto No. 4 (Prokofiev)
  • Prelude in B-flat major (Rachmaninoff)
  • String Quartet No. 5 (Shostakovich)
  • Pines of Rome by Ottorino Respighi
  • Les Barricades Mystérieuses
  • References

    B-flat major Wikipedia

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