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The B flat minor chord (just like all minor chords) contains the following intervals (from the root note): minor 3rd, Major 3rd, Perfect 4th (back to the root note).The Bbm chord is produced by playing the 1st (root), flat 3rd and 5th notes of the Bb minor scale.The B flat minor chord contains the notes Bb, Db and F.
The Bbm chord is enharmonically the same as the A#m chord. Therefore, the chord cannot be played as an open chord. None of the notes in the Bbm chord (Bb, Db, F) can be played on the open strings of the guitar.
The Bb Major scale and Bb Lydian mode can be used when soloing over the Bb Major 7 chord.The B flat minor chord (Bbm) is most often played as a bar chord. The Bb Major 7 chord works well with the Dbm7 chord (relative minor). The B flat Major 7 chord is the first chord in the key of B flat and the fourth chord in the key of F. The B flat Major 7 chord (just like all Major 7 chords) contains the following intervals (starting from the root note): major 3rd, minor 3rd, major 3rd, semitone (which leads back to the root note). The Bb Major 7 chord is produced by taking the 1 (root), 3, 5 and 7 of the Bb Major scale. The Bb Major 7 chord contains the notes Bb, D, F and A. If you’ve come to this page just to view some chord diagrams for Bb Major 7, here they are. For example, the Bb minor 7 chord can be produced by lowering the 3rd and 7th of the Bb Major 7 chord. It can also be used as a starting point, when figuring out other chords that have the same root note. The Major 7 chord in general is considered a kind of default chord, as it contains no altered notes of the Major scale (1, 3, 5, 7).
The most common way to play the Bb Major 7 chord is with the root note on the 1st fret of the 5th string (second shape in the image below). It is essentially a B flat Major chord, with the 7th note of the Major scale added. It is produced by taking the root, 3rd, 5th and 7th of the Bb Major scale. The B flat Major 7 chord (also written as Bb Maj 7) contains the notes Bb, D, F and A.