B 13th Mandolin Chord

also known as B13, Bdom13, B dominant 13th

make a barre on the fourth fret with your first finger from the first string to the fourth string
your second finger goes on the fifth fret of the first string
your third finger goes on the sixth fret of the third string
your fourth finger goes on the sixth fret of the second string

Diagram of a B 13th mandolin barre chord at the 4 fret

Notes in a B 13th Mandolin chord

Root : B

3rd : D#

5th : F#

Dominant 7th : A

9th : C#

13th : G#

B13

Diagram of a B 13th mandolin chord at the 1 fret (third inversion)

B13/A

B13

Diagram of a B 13th mandolin barre chord at the 1 fret (fifth inversion)

B13/G#

Diagram of a B 13th mandolin barre chord at the 7 fret (first inversion)

B13/D#

Diagram of a B 13th mandolin barre chord at the 2 fret (third inversion)

B13/A

Thirteenth

In music or music theory, a thirteenth is the interval between the sixth and first scale degrees when the sixth is transposed up an octave, creating a compound sixth, or thirteenth. A thirteenth chord is the stacking of six (major or minor) thirds, the last being above the 11th of an eleventh chord. Thus a thirteenth chord is a tertian (built from thirds) chord containing the interval of a thirteenth, and is an extended chord if it includes the ninth and/or the eleventh. The jazzy thirteenth is a very versatile chord and is used in many genres. Since 13th chords tend to become unclear or confused with other chords when inverted, they are generally found in root position.