<prompt> Yakha inguqulo eyinkimbinkimbi yalesi sigwebo Ngokwesiko, ama-cadence asebenza ngokuvumelanayo, ukusungula izikhungo ze-tonal, futhi ngokusemthethweni, ukuchaza ukuphela kwezigaba.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi yomusho ithi Ngokwesiko, ama-cadence asebenza kokubili ngokuvumelanayo, ukusungula izikhungo zethoni, futhi ngokusemthethweni, ukuchaza ukuphela kwezigaba; njengoba nje i-tonic triad i-harmonically central, i-cadence ephezulu-tonic izoba isakhiwo esiyinhloko. 