C# Suspended Fourth Guitar Arpeggio
Guitar arpeggio — fretboard diagram
C# Suspended Fourth Arpeggio — Notes and Intervals
Notes: C#, F#, G#
Intervals: 1P, 4P, 5P
Formula: 5-W
Number of notes: 3
Also known as: sus4, sus
The C# Suspended Fourth arpeggio contains 3 notes (C#, F#, G#). Use the interactive fretboard above to explore this arpeggio on Guitar with different tunings and fret ranges.
When to Use the C# Suspended Fourth Arpeggio
Play the C# Suspended Fourth arpeggio whenever a C# Suspended Fourth 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# Suspended Fourth arpeggio uses 3 notes (C#, F#, G#) 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# Suspended Fourth Arpeggio on Guitar
Root your C# Suspended Fourth arpeggio at fret 9 on the 6th (low E), or alternatively at 4th fret on the A string. With only 3 notes (C#, F#, G#), this arpeggio spans wide intervals across the strings — sweep picking is an efficient way to move through it cleanly. Keep your pick angle consistent and let each note ring individually.
The C# Suspended Fourth arpeggio avoids the third, creating an open, unresolved sound. It works over C#sus4, C#sus2, C#7sus4 voicings and is perfect for creating a modern, ambiguous harmonic feel that neither commits to major nor minor.
Practice Routine
Practice the C# Suspended Fourth 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, 4P, 5P) in any register.
Guitar Tips
On guitar, practice the C# Suspended Fourth arpeggio using string skipping — jump over a string between each note to create wider intervals. This technique produces a more pianistic, open sound compared to sweep picking and develops precise right-hand accuracy.
Related Resources
Explore C# Suspended Fourth in Other Tunings
- C# Suspended Fourth in Drop D (E-B-G-D-A-D)
- C# Suspended Fourth in DADGAD (D-A-G-D-A-D)
- C# Suspended Fourth in Open G (D-B-G-D-G-D)
- C# Suspended Fourth in Baritone (B Standard) (B-F#-D-A-E-B)
- C# Suspended Fourth in 7-string (E-B-G-D-A-E-B)
- C# Suspended Fourth in 8-string (E-B-G-D-A-E-B-F#)
- C# Suspended Fourth in Drop C (D-A-F-C-G-C)
- C# Suspended Fourth in Drop B (C#-G#-E-B-F#-B)
- C# Suspended Fourth in Open D (D-A-F#-D-A-D)
- C# Suspended Fourth in Half Step Down (Eb-Bb-Gb-Db-Ab-Eb)
- C# Suspended Fourth in Open E (E-B-G#-E-B-E)
- C# Suspended Fourth in Open A (E-C#-A-E-A-E)
- C# Suspended Fourth in Double Drop D (D-B-G-D-A-D)
- C# Suspended Fourth in Open C (E-C-G-C-G-C)