But if you still find yourself trapped in the confines of pentatonic and major ... around the chords of A minor and F Major, ...
Major pentatonic scales are used a lot in folk music and Chinese music. They usually have a joyful feeling. They are also very good for solos and melodies played on the guitar.
Now, one could easily play licks based on the F blues scale (F, Ab ... I begin over F7 with a simple melody based on F major pentatonic (F, G, A, C, D). In bar 2, I set up the arrival of D7 ...