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D♯ PowerThe D♯ Power chord is a two-note chord made up of D♯ and A♯.
Piano chords, scales, theory & ear training
Play something. It gets named here.
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Full identifier ›Today at the piano
Friday, July 31, 2026.
On this day
1886 Franz Liszt died in Bayreuth.
Term of the day
Dominant Bebop ScaleThe dominant bebop scale is the most commonly used bebop scale, a Mixolydian mode with an added chromatic passing tone between the ♭7 and the root.
Did you know
Most piano notes are struck on three strings; the lowest use two or one, for roughly 230 strings in total.
Piano by the numbers ›Jump to any reference page
Chords, scales, and modes: every key, both enharmonic spellings.
The index
Look anything up directly, in both enharmonic spellings, C♯ and D♭ alike.
Learn and practice
The reference is for looking things up; these are for getting better.
Learn Piano: the step-by-step pathAn ordered course from your first notes through chords, scales and theory. No login required. Start here.Follow the pathChord FinderPlay or click any combination of notes and see what chord it makes.Open the toolChord and Scale MasteryGuided series that read like short books, from what is a chord to altered harmony.Start readingPractice RoomConnect a MIDI keyboard and get graded feedback on timing, evenness and accuracy.Enter the roomCircle of FifthsThe interactive wheel: keys, relatives, and how they connect.Explore it
Who writes this
Maintained on nights and weekends by Justin Evans, a pianist of 25 years. Report a mistake