Voicing of C# Dominant 7 sus4

Rooted Guide Tones I

Back to C#7sus4

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Left hand
C#3F#3B3
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Rooted Guide Tones

The Rooted Guide Tones I voicing of C#7sus4 stacks C#, F# and B from the bottom up: the root, 4th and minor 7th of the chord.

It's one of the Rooted Guide Tones voicings: the root, 3rd and 7th in the left hand, as bebop pianists comped. The other for C#7sus4 is Rooted Guide Tones II.