In reply to Harmonics, Patterns, and Dynamics [...]:
Guided by the heart, I would say, as the supreme judge — following the beat.
It’s easier to write to a steady rhythm, just as it is easier to create a mechanical system of interchangeable parts according to standardized units of measurement.
Perceptually, too, a regular grid provides a benchmark or matrix against which variations acquire significance.
These general considerations of regularity precede any deterministic effects related to specific technologies.