Bb7+5 (Bb7#5) altered chord
Altered Bb chord for piano presented by keyboard diagrams.
Explanation: The Bb7+5 alter the Bb7 by the change of one note. Bb7+5 stands for B flat seven plus five (can also be written as Bb7#5).
Theory: Compared to Bb7 the third tone in the chord is sharpenedThe tone is one half step higher. Notice that Bb7+5 are identical with Bbaug7.
Fingerings: Little finger, middle finger, index finger, thumb (left hand); thumb, index finger, middle finger, little finger (right hand).
Bb7+5
Notes: Bb - D - F# - Ab
Left hand: 5-3-2-1
Right hand: 1-2-3-5
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