An open string left ringing against a fretted grip. Because it costs no finger, it sounds a note the closed shape has none left for -- a tension on top, or a pedal root underneath. Either a familiar grip with open strings added, or a shape so sparse the open strings carry the chord. These belong to their key rather than to a shape, so D, A, G and E have many and Eb a handful.
Bm is B, D and F# — B with the third lowered a semitone.
It sounds darker than a major triad, and just as settled. The i of a minor key, and the vi, ii or iii of a major one.

| B | D | F# |
|---|---|---|
| 1 | ♭3 | 5 |
Tonic — minor chords rest as readily as major ones.
Also written Bmin, B- or B minor. The same chord either way; which spelling you meet depends on who wrote the chart.
An open string left ringing against a fretted grip. It costs no finger, so it can sound a note the closed shape has none left for: a tension on top, or a pedal root underneath.
These belong to their key rather than to a shape: they cannot be moved up the neck. D, A, G and E have many; E♭ has a handful.
Bm has 4 of them, on the top four strings, strings 6-4-3-2 and the middle four strings, from the 2nd fret up to the 4th — every inversion the chord has: B in the bass, D in the bass and F# in the bass. The one to learn first is the D shape at the 2nd fret, which is the easiest grip here.
Start with x5443x — no barre and low, at the 3rd fret. None of the shapes for Bm uses an open string, so every one of them is movable; the lowest sits at the 2nd fret. 2 of the 8 need a barre. Together they cover the neck from the 2nd fret to the 14th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| x24432 | 2nd fret | B, root position | F# | all fretted |
| x5443x | 3rd fret | D, 1st inversion | D | all fretted |
| 7544x7 | 4th fret | B, root position | B | all fretted |
| 799777 | 7th fret | B, root position | B | barred |
| xx9777 | 7th fret | B, root position | B | barred |
| x-x-9-11-12-10 | 9th fret | B, root position | D | all fretted |
| x-x-12-11-12-10 | 10th fret | D, 1st inversion | D | all fretted |
| x-14-12-11-12-x | 11th fret | B, root position | B | all fretted |
The same notes rebuilt from scratch give 46 triad voicings, each on its own page.
How you get to it. The turn that lands on Bm is C#m7♭5 to F#7♭9: the ii and the V of B minor, which is where a minor tonic is usually arrived at rather than simply begun on.
In which keys. Every note of Bm belongs to D major (the vi), E minor (the v), F# minor (the iv), G major (the iii), A major (the ii) and B minor (the i).
Every note of Bm is in B minor pentatonic, B blues, B dorian, B natural minor and B phrygian.
Change one note of Bm and you have B (the minor third becomes a major third), Bdim (the fifth becomes a flat fifth), Bsus2 (the minor third becomes a ninth), Bsus4 (the minor third becomes a fourth), Bm6 (add the sixth) or Bm7 (add the flat seventh).
Bm is a minor chord — root, minor third, fifth. Minor chords on every root.
On Bm’s sound and use this page follows Edward Aldwell & Carl Schachter, Harmony and Voice Leading (Schirmer / Cengage, 4th ed., 2011). The shapes and the derived voicings come from different places, and both are explained in where the chords and the theory come from.
Shows each chord the way this style would voice it, and marks which of its alternatives belong to the idiom.