Could we add a third voice to the ascending scale in parallel tenths?
We could add the 6th above the bass, resulting in the famous fauxbourdon.
But what if we wanted to begin and end with a more stable sonority? Perhaps a 5/3 chord?
Another common ascending scale pattern of the 17th and 18th century is the 5-6 sequence – in which the voice that begins on 5 moves to 6 before the bass ascends. Practice this pattern in a variety of scales.