Chapter Fourteen. Sectional Forms. Basic Elements of Music. Rhythm Melody (pitch) Harmony Timbre (sound) Form (shape). Form. Form—Organizational plan of a piece of music--how many motives, phrases, verses, etc. For Example. Blues Tune I | I | I | I |
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I |I |I |I |
IV |IV |I |I |
V |IV |I |V |
A 12 bar blues is made up of 3 phrases, each 4 measures long. This is what is called strophic form.
Here we have a song that has two phrases, but the first one is six measures long and the second one is eight measures long. This not real common but not unusual either.
When we discuss the number of phrases and how they go together, we are discussing the formal elements of the piece.
Individual lines of a song can repeat -
aa(repeated note for note)
Silent Night, Holy Night
b b’(slight variation)
All is calm, all is bright.
c (new melodic material)
Round yon Virgin, Mother and Child.
c (repeated note for note)
Holy Infant so tender and mild.
d (new melodic material)e(new melodic material)
Sleep in heavenly peace Sleep in heavenly peace