C augmented

Caug

Also written C+ · C(♯5) · C augmented

NotesC · E · G♯
Formula1 · 3 · ♯5
C1E3G♯♯5
Root position

Every note of Caug is a major 3rd from the next, so Caug, Eaug and A♭aug are the same three keys. As a V+ it pulls to F: the raised 5th leans up into its 3rd.

How pianists voice Caug

The same notes, laid out the way hands actually play them.

Open triad Spread

C1E3G♯♯5

1 · ♯5 · 3 — root and 5th below, the 3rd an octave up. The same three notes spread over two octaves: the sound of strings rather than a keyboard.

Caug inversions

The same 3 notes with a different one in the bass. Each inversion is written as a slash chord.

Root position Caug

C1E3G♯♯5

Root at the bottom, stacked in 3rds: 1 · 3 · ♯5.

1st inversion Caug/E

E3C1G♯♯5

E (the 3) in the bass: 3 · ♯5 · 1.

2nd inversion Caug/G♯

C1E3G♯♯5

G♯ (the ♯5) in the bass: ♯5 · 1 · 3.

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