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INTRODUCTION TO MUSIC THEORY. Thursday, September 13, 2012. TODAY: . Music Sharing – Rosie (XHS ) RQ6 Review: Tetrachords Review: Major scales Sharp scales Flat scales Introduction: Key Signatures Work on: Composition #1 (due tomorrow!) Tomorrow: In–class review for Unit 1 test
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INTRODUCTIONTO MUSIC THEORY Thursday, September 13, 2012
TODAY: • Music Sharing – Rosie (XHS) • RQ6 • Review: Tetrachords • Review: Major scales • Sharp scales • Flat scales • Introduction: Key Signatures • Work on: Composition #1 (due tomorrow!) • Tomorrow: In–class review for Unit 1 test • Monday: Unit 1 Exam!
REVIEW: Tetrachords • The word TETRA means four. • A TETRACHORD is a series of four notes having a pattern of: • whole step, whole step, half step • A G tetrachord would be: • G (W) A (W) B (H) C • A C tetrachord would be: • C (W) D (W) E (H) F
REVIEW: Major scales • A MAJOR SCALE consists of eight notes: • two tetrachords joined by a whole step • W W H WWW H • Each scale begins and ends on the same note, called the keynote or TONIC. • The tones of a scale are also called the DEGREES or steps of a scale. • The are eight (8) scale degrees in a major scale. • In a major scale, half steps occur between scales degrees 3 & 4 and 7 & 8. • 1 (W) 2 (W) 3 (H) 4 (W) 5 (W) 6 (W) 7 (H) 8
THE MAGIC PHONE NUMBER: W W H WWW H
SHARP SCALES: • Using the same pattern for tetrachords of W, W, H, you can build other major scales. • The sharp scales are: • G Major • D Major • A major • E major • B major • F# major • C# major
SHARP SCALES: • Starting with the C major scale, the 2ndtetrachord is always the 1sttetrachord of the following sharp scale. This overlapping pattern continues through all of the major sharp scales. • The 2ndtetrachord of the C major scale is the first tetrachord of the G major scale. • The 2ndtetrachord of the G major scale is the first tetrachord of the D major scale.
SHARP SCALES: • Starting with the C major scale, the 5th scale degree is always the 1st scale degree (keynote/tonic) of the following scale. This pattern continues through all major flat scales. • The 5th scale degree of the C major scale (G) is the 1st scale degree of the G major scale. • The 5th scale degree of the G major scale (D) is the first scale degree of the D major scale.
FLAT SCALES: • Using the same pattern for tetrachords of W, W, H, you can build other major scales. • The flat scales are: • F major • Bb major • Eb major • Ab major • Db major • Gb major • Cb major
FLAT SCALES: • Starting with the C major scale, the 4th scale degree is always the 1st scale degree (keynote/tonic) of the following scale. This pattern continues through all major flat scales. • The 4th scale degree of the C major scale (F) is the 1st scale degree of the F major scale. • The 4th scale degree of the F major scale (Bb) is the first scale degree of the Bb major scale.
KEY SIGNATURES: • To make the reading and writing of music easier, you can place all of the sharps or flats used in a piece or scale immediately after the clef sign. This is called the KEY SIGNATURE. It indicates the notes that will be sharped or flatted each time they appear for the entire piece (or until the key signature changes).
KEY SIGNATURES: • To figure out the name of a major [sharp] key from the key signature, go up a half step from the last sharp. • A key signature of F# would be the key of G major. • A key signature of F# & C# would be D major. • To figure out the name of a major [flat] key from the key signature, remember that one flat is in the key of F. • For two or more flats, the second–to–last flat is the name of the key. • A key signature of Bb & Eb would be the key of Bb major.
