Bb 7th chord
Bb7 chord for piano with keyboard diagram.
Explanation: The B flat seventh is a dominant four-note chord. You can see the four notes of the Bb seventh chord marked in red color. The chord is often abbreviated as Bb7.
Theory: The Bb seventh chord is constructed with a root, a major thirdAn interval consisting of four semitones, a perfect fifthAn interval consisting of seven semitones and a minor seventhAn interval consisting of ten semitones and the 7th scale degree.
Fingerings: Little finger, middle finger, index finger, thumb (left hand); thumb, index finger, middle finger, little finger (right hand).
Notes: Bb - D - F - Ab
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Bb7 - inversions
Explanation: The images below show the three inversions of the B flat dominant seventh chord. Bb7/D is a B flat dominant seventh with D as the bass note, Bb7/F is a B flat dominant seventh with F as the bass note and Bb7/Ab is a B flat dominant seventh with A flat as the bass note.