A, semiquaver on beat 1; G sharp, semiquaver on beat 1.25; F sharp, semiquaver on beat 1.5; E, semiquaver on beat 1.75; D, crotchet on beat 2; C sharp, 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.