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Jam School Activities

Transpose A Song (Change Keys)

Starting Point #3 in the Series

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In this exercise, a written musical example will be provided for the job. Students will transpose using the number method.

Number Method: After determining what key the song is in, each note is given a number corresponding to its place on that key's major scale. A new key will be selected for the song, and each note from the old key will be replaced in decoder-ring fashion with a note with the corresponding number from the new key.

Background & reference:
Master Theory Book 3 (Lessons 71 & 72)


Numbered Elements of Each Major Scale
Key 1 2 3 4 5 6 7 8
C C D E F G A B C
C#/D-flat C#/D-flat D#/E-flat E#/F F#/G-flat G#/A-flat A#/B-flat B#/C C#/D-flat
D D E F# G A B C# D
E-flat E-flat F G A-flat B-flat C D E-flat
E E F# G# A B C# D# E
F F G A B-flat C D E F
F#/G-flat F#/G-flat G#/A-flat A#/B-flat B/C-flat C#/D-flat D#/E-flat E#/F F#
G G A B C D E F# G
A-flat A-flat B-flat C D-flat E-flat F G A-flat
A A B C# D E F# G# A
B-flat B-flat C D E-flat F G A B-flat
B/C-flat B/C-flat C#/D-flat D#/E-flat E/F-flat F#/G-flat G#/A-flat A#/B-flat B/C-flat


Note that notes separated by a slant (C#/D-flat) are written differently, but are the same pitch. In terms of pitch the scales F# amd G-flat are the same, but we just spell the notes differently. Ditto for B/C-flat and C#/D-flat.

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