From the recording Backing and Jam Tracks for Guitar Vol. 11
This moody piano-based backing track is great for working on your phrasing while connecting different scales. Try playing E Aeolian Minor in the first measure and then C Major in the second (and then alternating between the two). Arpeggiating both chords will make it obvious which chord you're playing over. Try the same in the bridge using G and D Major.