This pattern descends in half steps, but takes a long time to do so. Fill in each descending minor 7ths arpeggio with minor 3rds the ascend by whole step. Two will get you to the next key down. Three will get you to the next key up, so you can noodle around these forever!
The minor 7th arpeggios and minor 3rds make this pattern very easy to slip into standard practice jazz language. It could easily start or end as a common ii-V7-I cadence.
Sometimes I like to start this pattern one 8th-note early, like so, for a more disorienting effect. Now the 4th intervals are emphasized over the 3rds. Try your favorite patterns like this and see how their effect shifts.