

Using the major scale degrees as a reference (1, 2, 3, 4, 5, 6, 7), the Major pent is (1, 2, 3, 5, 6) and the minor pent is (1, b3, 4, 5, b7). There are 2 common pentatonic scales, the major and the minor.

That's an issue you will find when playing in minor modes, whereby you will have to get out of the strict mode, and weave into the harmonic minor scale when you're playing over that one. These 2 will depend on the other chords in your progression, and will determine what mode you're in.Īlso, bear in mind what said about the V chord. In particular, the 2nd and the 6th, which are the notes missing from the pentationic. You will get more variety in your sound if you add some extra notes. However, I would argue that it is not enough. You could just stick to the Bm pentatonic, and it would be "fine". Also, you will find that the other 2 scales you mention lack important tones (the minor 3rd in the case of F#m and the 5th in the case of the Em).

Regardless of whether your progression is Bm aeolian, phrygian or dorian, the Bm pentatonic would be a good match. Normally, if you're playing over a progression in Bm, you would play the Bm pentatonic. So it all depends on the context (that is, the exact chord progression). As already commented, the minor pentatonic scale contains all the notes that are common to the minor modes (aeolian, dorian, phrygian).
