Just to make sure that I understand the tutorials (thanks, by the way), when playing the D7 and E7 chords, are you still using the Am Pentatonic scales (with the F# and G# respectively) and starting on either D or E during a lick, or do you shift to the Dm and Em Pentatonic scales (while adding F# and G#), since both scales also fit in the key of Am? My understanding of scales is rudimentary, but I guess what I'm asking is if you would ever incorporate the F or B at any point while playing in Am?