JS Bach - Brandenburg Concerto
- Created by: owenfrancis
- Created on: 17-04-17 17:54
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- JS Bach - Brandenburg Concerto
- Structure
- The structure of this movement is very different from the standard ritornello form found in theconcertos of composers such as Vivaldi.
- Texture
- Occasionally the flute and violin play in thirds. The harpsichord also does this.
- Occasionally the flute and violin play in thirds. The harpsichord also does this.
- The harpsichord plays in two-part counterpoint.
- The texture is polyphonic/contrapuntal (i.e. contains several independent melodic strandssounding together).
- The bass line for the new middle section theme has a tonic pedal on B.
- When the ripieno is playing, the flute and violin sometimes double each other in unison (e.g.bar 33).
- Melody
- Much of the music is in conjunct (stepwise) style (e.g. bar 2), though there are leaps (e.g.fourths in bar 1).
- Often the conjunct music is extended to scalic runs, especially in the harpsichord part.
- There is a rising sequence at bar 137 (same short phrase repeated several times, going upone note each time).
- There are occasional ornaments, with trills (e.g. bar 19) in the harpsichord part.
- Tonality
- This key is used for most of the two A sections.
- The music is in D major.
- The B section modulates to the dominant (A major) and relative minor (B minor).
- The music is diatonic.
- Harmony
- Perfect cadences announce the ends of sections.
- The harmony is functional.
- The harmony uses mainly root position and first inversion chords.
- The harmony uses the standard chords of the time, including dominant sevenths in variousinversions.
- Suspensions are used occasionally (i.e. 9–8 suspension at bar 130).
- Tempo, metre and rhythm
- It uses triplets and dotted rhythm throughout.
- The harpsichord part in particular has many semiquaver runs.
- triplet rhythm – so the dotted quaver would be two-thirds of a beat, and the semiquaverwould be one-third of a beat.
- The metre is 2/4 – two beats to the bar – but the music could also be notated in 6/8compound time. It is essentially a Baroque gigue (a dance in compound duple time).
- Structure
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