Standard Tuning Lesson 1
To me the hardest thing seems to be to get my two hands working
independently yet together. Most patterns I come up with fall into the
modal-stay-the-same category. Meaning you put the fingers where they belong
and nothing really changes. This example switches between two tonalities
and on top of it runs a four-note pattern in the treble against a three
note pattern in the bass.

Of course every three measures everything lines up.
The first three measures produce a B minor melodic sound. The last three
measures are harder to define as the bass notes clearly line out an A minor
triad and on top is something like an A major augmented #11.