Oar - Old Man Time Chords & Tabs

Standard tuning, playing either the lower section sounds good just as a backing bass, or 
the higher section sounds good as well. I think it sounds better played as a chord 
and that is how i tabbed it.
[ Tab from: https://www.guitartabs.cc/tabs/o/oar/old_man_time_btab.html ]
G----6-6-9-6-------------------------|
D----7-7-7-7--7-7-9-7--6-6-7-6--6----|
A-------------9-9-9-9--7-7-7-7--7----|
E------------------------------------|


I figure that the rest of the song could sound well going along the same scale. As a 
I would stick to the bottom 3 notes of the intro and just riff it out.