4:------------------------------ 3:------------------------------ 2:-0-0--3-5-6--7---------------- 1:------------------------------ 4:------------------------------ 3:------------------------------ 2:-0-0--3-7-6--5---------------- 1:------------------------------ 4:------------------------------ 3:------------------------------ 2:-0-0--3-5-6--7---------------- 1:------------------------------ 4:------------------------------ 3:------------------------------ 2:-0-0--3-7-6--5---------------- 1:------------------------------ pretty much keep repeating....
https://primoaccordo.net/roots/thought-at-work.htm