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A piano reference: chords, scales, theory. Full MIDI.

Piano chords, scales & theory. Full MIDI.

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Today at the piano

Tuesday, August 11, 2026.

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G Diminished

The G Diminished chord is a three-note chord made up of G, B♭, and D♭.

On this day

1904 Jess Stacy, the swing pianist whose solo lifted the 1938 Carnegie Hall jazz concert, was born in Bird’s Point, Missouri.

Term of the day

Minor 6 Pentatonic Scale

The minor 6 pentatonic scale replaces the flat 7th of the standard minor pentatonic with a natural 6th, producing a five-note scale with a lighter, more melodic minor character.

Did you know

The black keys play the five sharps and flats in each octave, grouped in twos and threes.

Piano by the numbers

The index

Look anything up directly, in both enharmonic spellings, C♯ and D♭ alike.

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