Ah, yes. If there was a "g" in the melody I would be using the C major pentatonic scale. There is a "g" in the bass line that I have been playing with.

Actually, although I usually play acoustic guitar, I am writing this on piano and have played the melody on my electric. I've also played around with a synth appreggio. It does sound rather modal.

I think I will take your advice and just run with the groove. We will see where it goes.