Guitar chords: Bflat sixth
Bb6

X
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|1|||| 1st fret
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||||||
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||3333
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 BFBDG
 b b

or:

X  O X
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|1||||
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||||||
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||3|4|
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||||||
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 BFDG
 b

Notes:
1 : B
3 : D#
5 : F#
6 : G#