Why does D# sound so well when added to C# minor pentatonic?
I'm completely new here, so I hope I'm posting this question in the right section of the forum.
I've been trying to improvise a little bit over a simple chord progression: Amaj, Bmaj, C#min. Since I have no knowledge of scales other than major and pentatonic, I went for C# min pentatonic. I have two questions here...
1) Does C# minor pentatonic work over other chords in this progression? After all they are major chords (Amaj: A, E, C#; Bmaj: B, F#, D#). C# pentatonic consists of these sounds: C#, E, F#, G#, B, G#, so there is some overlap (except for G# and D#, all the other sounds can be found in either Amaj or Bmaj)
2) When I add D# to the mix... it sounds surprisingly well but I have no idea why...
I really don't know how to approach this whole thing. Should I be changing scales every time I'm improvising over a different chord?
Any help will be much appreciated.