C# Augmented Seventh Ukulele Arpeggio

Ukulele arpeggio — fretboard diagram

C# augmented seventh arpeggio — ukulele fretboard diagramInteractive fretboard diagram showing the C# augmented seventh arpeggio on ukulele with 15 frets. Notes: A, C, C#, F.ACC#FACFACC#FCC#FACC#ACC#FA13579111213

C# Augmented Seventh Arpeggio — Notes and Intervals

Notes: C#, F, A, C

Intervals: 1P, 3M, 5A, 7M

Formula: 2W-2W-WH

Number of notes: 4

Also known as: maj7#5, maj7+5, +maj7, ^7#5

The C# Augmented Seventh arpeggio contains 4 notes (C#, F, A, C). Use the interactive fretboard diagram above to explore each arpeggio shape and pattern on Ukulele. Practice ascending and descending from the root note across all strings to learn the sound of this arpeggio.

When to Use the C# Augmented Seventh Arpeggio

Play the C# Augmented Seventh arpeggio whenever a C# Augmented Seventh chord appears in a progression. Unlike scales (which include passing tones), arpeggios guarantee every note you play IS a chord tone, making your solo sound harmonically precise and intentional.

Arpeggio vs. Scale

The C# Augmented Seventh arpeggio uses 4 notes (C#, F, A, C) while the full scale uses 7. The arpeggio is a subset — think of it as the skeleton of the scale. Practice alternating between the arpeggio and the full scale to develop a melodic vocabulary that mixes chord tones with passing tones.

How to Play C# Augmented Seventh Arpeggio on Ukulele

On ukulele, find C# around the open strings and play through the arpeggio tones (C#, F, A, C). You may need to move beyond a single chord shape to reach all 4 notes. Practice connecting the arpeggio tones smoothly across adjacent fret positions.

The C# Augmented Seventh arpeggio has a symmetrical, ethereal quality built from major thirds. It fits over C#aug, C#+, C#maj7#5 chords and is useful for creating a sense of upward motion and harmonic ambiguity.

Practice Routine — Exercises for Playing

Practice the C# Augmented Seventh arpeggio in different octaves, starting low and working up. Then try displacing the octaves — play the root low, the F an octave higher, and continue leaping. This trains your ear to hear the intervals (1P, 3M, 5A, 7M) in any register.

Ukulele Tips

The ukulele's re-entrant tuning creates natural voice leading within the C# Augmented Seventh arpeggio. Experiment with picking patterns that take advantage of the high G string to create unexpected interval leaps within the arpeggio shape.

Related Resources

Explore C# Augmented Seventh in Other Tunings

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