Voicing of F# Minor Triad

Doubled Root

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Left hand
F#2A2C#3F#3
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Triads

The Doubled Root voicing of F#m stacks F#, A, C# and F# from the bottom up: the root, minor 3rd, 5th and root of the chord.

It's one of the Triads voicings. The others for F#m are Root Inversion, 1st Inversion and 2nd Inversion.