So on the manual :CLOCK input
The signal patched into the CLOCK input controls the timing of all four tracks simultaneously. While the ER-101 is not paused, a rising edge on the CLOCK input will advance the play cursor on all tracks. The threshold voltage for a valid trigger is 2.5V. This clock may be multiplied and/or divided, internally.
If i understand correctly this means the “clock”does not have to be a steady pulse but can be example a rhythmic pulse. Meaning each programed note will trigger everytime a rising edge of a gate is sent to the clk input?