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A piano reference: chords, scales, theory & ear training.

Piano chords, scales, theory & ear training

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Today at the piano

Friday, July 31, 2026.

Featured page

D♯ Power

The D♯ Power chord is a two-note chord made up of D♯ and A♯.

On this day

1886 Franz Liszt died in Bayreuth.

Term of the day

Dominant Bebop Scale

The 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.

Who writes this

Justin Evans at the piano

Maintained on nights and weekends by Justin Evans, a pianist of 25 years. Report a mistake