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