per:so if everyone is playing a part in the song that goes from Bmin to Amaj to Gmaj, and you have to come up with a solo or a lick or a hook for that part of the song, and i have never heard what they are doing, i would be focusing on constructing my parts out of the notes that make up those chords.
Terms need clarifying here: when musicians say "in major or minor" they mean key. Sticking to chord notes of the chords (this is unclear in the first statement: B min et al *chord* or *key*?) is not necessarily 'in major' or 'in minor'. Bm, A, G chords in a song can all belong to the key of D major: vi, V, IV; or B minor in its unaltered 'natural' state. 2 sharps.the scale is my own territory. meaning i can play notes in major or minor depending what other people are playing.
Or G Lydian; or A Mixolydian.
But Dorian or Mixolydian are not fancy experimental music concepts....agreed before hand a rock & roll feel and vide to the music, and (I) do not want to explore experimental music.. i would not be trying to incorporate notes that might be found in fancy dorian or mixolodian scales
Carlos Santana's thing was Dorian: Gm to C vamp and Dorian soloing. Mixolydian is like major with a flat 7. Flat 7 is more 'rock' than major. Vamp A to G, when A feels like home, a simple 7 note set which belongs to it is the A Mixolydian mode. If G feels like home, G Lydian. Rock guitar solos use these all the time.