C# Half-diminished Guitar Arpeggio

C# Half-diminished in 8-string — Notes and Intervals

Notes: C#, E, G, B

Intervals: 1P, 3m, 5d, 7m

Formula: WH-WH-2W

Number of notes: 4

Tuning: 8-string (F#-B-E-A-D-G-B-E)

Also known as: m7b5, ø, -7b5, h7, h

The C# Half-diminished arpeggio contains 4 notes (C#, E, G, B). Use the interactive fretboard above to explore this arpeggio on 8-string guitar — 8-string with different tunings and fret ranges.

About 8-string Tuning

The 8-string guitar adds both a low B and a low F# string (F#-B-E-A-D-G-B-E), pushing the instrument's range almost into bass guitar territory. This massive tonal range has become the weapon of choice for djent, progressive metal, and experimental composers who need bone-crushing low-end and soaring highs in a single instrument.

With artists like Tosin Abasi, Meshuggah, and After the Burial leading the charge, the 8-string guitar has redefined what's possible in modern heavy music. The low F# string delivers subsonic heaviness that you can feel in your chest, while the upper strings maintain standard guitar voicings for leads and clean passages. Extended-range compositions often exploit the full span of the instrument, creating a wall of sound that covers bass, rhythm, and lead guitar roles simultaneously.

Notable artists: Meshuggah, Animals as Leaders, After the Burial, Intervals, Monuments

Best for: Djent polyrhythms, extended-range metal riffs, experimental compositions, and one-instrument arrangements spanning bass to lead

Explore This Arpeggio in Other Tunings

• C# Half-diminished in Standard Tuning
• C# Half-diminished in Drop D
• C# Half-diminished in DADGAD
• C# Half-diminished in Open G
• C# Half-diminished in Baritone (B Standard)
• C# Half-diminished in 7-string
• C# Half-diminished in Drop C
• C# Half-diminished in Drop B
• C# Half-diminished in Open D

← All Guitar arpeggios in 8-string tuning