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INTRODUCTION TO MUSIC THEORY. Tuesday, October 9 , 2012. TODAY:. Music Sharing : Bridget (XHS) Review : Intervals Review : Triads Introduce : Inversions Introduce : Figured Bass. INVERSIONS:. An inversion is changing the order of the notes in a triad.
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INTRODUCTION TO MUSIC THEORY Tuesday, October 9, 2012
TODAY: • Music Sharing: Bridget (XHS) • Review: Intervals • Review: Triads • Introduce: Inversions • Introduce: Figured Bass
INVERSIONS: • An inversion is changing the order of the notes in a triad. • When there is an inversion of a triad, the note names do not change.
POSITIONS: • Root position • 1st inversion • 2nd inversion • 3rd inversion (7th chords only!)
ROOT POSITION: • The “standard” position of a triad • Root on the bottom • 3rd in the middle • 5th on top
1st INVERSION: • 3rd on the bottom
2nd INVERSION: • 5th on the bottom
3rd INVERSION: • 7th on the bottom
WARNING! • To determine the quality of a triad, it MUST first be put in ROOT POSITION.
DETERMINING QUALITY & INVERSION: • Step 1: Write letter names • Step 2: Stack them in thirds • Step 3: Determine the quality of chord • Step 4: What note is on the bottom of the original chord?
FIGURED BASS – TRIADS: • 1st Inversion: • I 6 3 • C/E • 2nd Inversion: • I 6 4 • C/G
FIGURED BASS – 7th CHORDS: • Root Position: • I 7 5 3 • C7 • 1st Inversion: • I 6 5 3 • C7/E
FIGURED BASS – 7th CHORDS: • 2nd Inversion: • I 6 4 3 • C7/G • 3rd Inversion: • I 6 4 2 • C7/Bb