Guitar arpeggio
C# Augmented Major 7 Guitar Arpeggio
C# Augmented Major 7 is a four-note seventh-chord arpeggio built from C#, E#, G##, and B#. It is also commonly called C# Augmented Major Seventh and C#AugMaj7. Use it to study chord tones, interval formulas, and guitar fretboard positions.
- Chord tones
- C#, E#, G##, B#
- Formula
- 1 3 #5 7
- Semitones
- 0 4 8 11
- Chord symbols
- C#augMaj7, C#+Maj7
- Also called
- C# Augmented Major SeventhC#AugMaj7
How to read this arpeggio
The chord tones are shown as pitch classes first. In the fretboard tool, square markers represent C# root notes, while circular markers represent the remaining tones in the arpeggio.
Use the interactive fretboard to locate the C# root notes and connect the remaining augmented major 7 chord tones across standard tuning.
This same arpeggio shape is also commonly called C# Augmented Major Seventh or C#AugMaj7.
Chord construction and defining tones
C# augmented major 7 is defined by 3 (E#), #5 (G##), and 7 (B#). It combines an augmented triad with the natural seventh for a bright but unsettled extended sound.
Harmonic use
Use this arpeggio over C#augMaj7, major-seventh sharp-five chords, and melodic-minor harmony that supports both the raised fifth and major seventh.
Practice this arpeggio on guitar
- Play the C# Augmented Major 7 arpeggio from one C# root to the next in at least two fretboard positions, saying each note name and interval degree aloud.
- Sequence 3 (E#), #5 (G##), and 7 (B#) through multiple positions and resolve the sharp fifth and major seventh by semitone.
- Improvise over C#augMaj7, balancing the symmetrical augmented triad with clear resolutions to the root.
Fretboard diagram
Open this arpeggio in the fretboard tool
Start with C# Augmented Major 7 loaded, then adjust tuning, labels, colors, fret count, and orientation.
Open in interactive fretboard