A, semiquaver on beat 1; B, semiquaver on beat 1.25; C, quaver on beat 1.5; D, semiquaver on beat 2; E, semiquaver on beat 2.25; F, quaver on beat 2.5; E, minim on beat 3
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A B C D E F G
Change the key and this same phrase is read against the new key's scale — the shape you practise never changes, and the notes can never leave the scale.