In this video on “improvising” in Open G Tuning, I just feel my way around with single lines, sloppy phrasing, and sliding. I’m just going off the Muddy Waters style riff I was playing with yesterday as a damping exercise.
There are so many minor and major pentatonic single lines in Open G you can fret or slide on the guitar with and just improvise, and or, compose songs with as well.
If you’re doing a cover of an old more primitive Blues song I find phrasing with these scales helps to update the song a bit.
Just learn licks, riffs, and chords and listen to old recordings of Delta Blues, Chicago Blues, Texas Blues and practice playing slide guitar.