To play the Bm chord, perform a barre by pressing your index finger on the C-string, E-string, and bottom-A string on the 2nd fret and ring finger on the 4th fret of the top g-string.
The B minor chord contains the notes B-D-F#.
To build a Bm chord, take the minor triad formula (1-b3-5) and apply it to the B major scale (B, C#, D#, E, F#, G#, A#).
Identify the first, third, and fifth scale degrees in a B major scale which are B-D#-F#.
Because the chord Bm is a minor chord, lower the third scale degree a half step in accordance with the minor triad formula, which results in the notes B-D-F# for the B minor chord.
Watch the following video to learn how to play a Bm chord on ukulele.
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