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- Left hand
- F#2B2C#3F#3
- Family
- Triads
The Doubled Root voicing of F#sus4 stacks F#, B, C# and F# from the bottom up: the root, 4th, 5th and root of the chord.
It's one of the Triads voicings. The others for F#sus4 are Root Inversion, 1st Inversion and 2nd Inversion.