Chords of Piano
The basic chords on the piano are typically triads, which consist of three notes played simultaneously. The most common chords are:
Major Chords - These chords are built using the 1st, 3rd and 5th notes of a major scale.
Minor Chords - These chords are built using the 1st, flattened 3rd, and 5th notes of a major scale.
Diminished Chords - These chords are built using the 1st, flattened 3rd, and flattened 5th notes of a major scale.
Augmented Chords - These chords are built using the 1st, 3rd, and sharpened 5th notes of a major scale.

Common major piano chords include:
C major (C). C - E - G
C# major (C#). C# - E# - G#
D major (D). D - F# - A
Eb major (Eb). Eb - G - Bb
E major (E). E - G# - B
F major (F). F - A - C
F# major (F#). F# - A# - C#
G major (G). G - B - D
Ab major (Ab). Ab - C - Eb
A major (A). A - C# - E
Bb major (Bb). Bb - D - F
B major (B). B - D# - F#
Here are the base chords of the C major scale:
C Major - C, E, G
D Minor - D, F, A
E Minor - E, G, B
F Major - F, A, C
G Major - G, B, D
A Minor - A, C, E
B Diminished - B, D, F