Bb5

Bb5 is Bb and F, a power chord. The shape this page opens on is written x13xxx, lowest string first.

Also written Bb(no 3rd) or Bb power chord. The same chord either way; which spelling you meet depends on who wrote the chart.

There are 3 common shapes for Bb5 on the guitar, and 25 derived voicings in the triad family.

In which keys. Every note of Bb5 belongs to C minor (the ♭VII), C# major (the vi), D minor (the ♭VI), Eb major (the V), Eb minor (the v), F major (the IV), F minor (the iv), F# major (the iii), G minor (the ♭III), Ab major (the ii), Bb major (the I) and Bb minor (the i).

The common shapes, written lowest string first: x13xxx, 688xxx, x-13-15-x-x-x.

Triad. Three notes across one string set. Bb5 has x133xx, 113xxx, 1133xx, 688xxx, x-8-8-10-x-x, x-13-15-15-x-x, 13-13-15-x-x-x, 13-13-15-15-x-x.

The common shapes and the derived voicings come from different places, and both are explained in where the chords and the theory come from.