Bach Chorale- things i need to remember
- Created by: Heather
- Created on: 22-03-13 16:47
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- Bach Chorale- things i need to remember
- Melodic/ harmonic decoration
- Suspensions: 4-3, 7-6, 9-8 2-3 (bass only)- look for descending patterns in inner parts.
- Arpeggiations leap to another note of the chord
- Substitution Chords
- The final cadence in a minor key chorale will have a Tierce de Picardie.
- Chord #vii7 can replace chord V7 in a V7-I progression, which isn't at a cadence
- Chord ii7b can decorate the ii7b-V-I cadence as a secondary dominant
- Intervals
- Leading notes are approached by step/ note of chord V.
- Rise to the tonic or fall a 3rd to the dominant
- Gap between Soprano and Alto mustn't exceed an Octave
- Leading notes are approached by step/ note of chord V.
- Chords and their progressions
- The bass can leap octaves to give strong impression of change of chord
- The Passing viib:
- 345, 543, 123, 878
- Cadences
- Approaches to the perfect cadence:
- Ic-V-I only used in home key or relative minor- dont double the root (5th).
- Ib-V-I, the 3rd can be doubled if relevant parts are in contrary motion
- IIb-V7-I, remember to prepare the 7th, used in maj0or keys only
- Approaches to the perfect cadence:
- Best when root falls 5th/3rd
- Modulations
- Tonic- Dominant- Tonic (maj and min keys)
- Tonic- Relative- Tonic (minor keys only)
- Pivot Chords
- FROM MAJOR KEY:
- To the Dominant: vi=ii
- To the Sub Dominant: ii=vi
- To the relative minor: ii=iv
- FROM A MINOR KEY
- To the dominant minor: i=iv
- To the subdominant minor: iv=i
- To the relative major: iv=ii
- FROM MAJOR KEY:
- Melodic/ harmonic decoration
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