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Tkinter GUI Application Development Blueprints - Second Edition by Bhaskar Chaudhary

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Learning about scales

A scale is an organized sequence of notes chosen from the 12 notes in a particular pattern, which gives it a characteristic feel, perhaps a happy, sad, exotic, oriental, enigmatic, or rebellious feel. A scale can start on any note of the 12 notes and follows a definite pattern. The first note of a scale is called its root note and the pattern it follows gives it a scale type. 

One particular scale of relevance to us is called the Major scale. Starting at any key, the Major scale follows the following pattern:

W W S W W W S

where W stands for whole tone (jump of two keys) and S stands for semitones (jump of one key).

For example, if you play the notes C1, D1, E1, F1, G1, A1, B1, C2, and back, one-by-one, you have played ...

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