Your row

Click the staff to place note 1 of 12. Choose ♯ or ♭ first for accidentals.

C C♯/D♭ D D♯/E♭ E F F♯/G♭ G G♯/A♭ A A♯/B♭ B
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After the method of Arnold Schoenberg, but expanded to support various lengths.

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Created by Brett Austin Eastman