Augmented Triads on Piano

What do augmented triads sound like?

Dreamlike and unresolved in a floating way — where diminished tension pushes, augmented tension hovers. It sounds like a question mark.

How are they built?

Two major thirds stacked: root, major 3rd, augmented 5th. The raised 5th splits the octave exactly in three, so the chord is perfectly symmetrical.

What is their job in a progression?

Usually a passing chord: the raised 5th climbs from a plain major chord toward the 6th (C → C+ → C6 or Am). Its symmetry means every inversion is another augmented triad.

Where you'll hear them

The Beatles ("Oh! Darling" intro), old Hollywood dream sequences, and jazz turnarounds where a V+ adds lift before resolving.

The beginner mistake

Treating the ♯5 as a wrong note and "correcting" it to the perfect 5th mid-passage. Commit to the raised note — its pull upward IS the point.

Fingering logic

The evenly spread shape sits comfortably under 1-3-5; because both intervals are wide, keep the wrist loose and let the hand open slightly more than for a major triad.

Neighboring families