Ƙirƙirar wani nau'i mai mahimmanci na wannan jumla A al'ada, ƙididdiga suna aiki da juna, don kafa cibiyoyin tonal, da kuma yadda ya kamata, don bayyana ƙarshen sassan.
Tabbas, wani nau'i mai rikitarwa na jumla shine "A al'adance, ƙididdigar aiki biyu harmonically, don kafa cibiyoyin tonal, da kuma a hukumance, don bayyana ƙarshen sassan; kamar yadda triad na tonic ya kasance mai jituwa, wani rinjaye-tonic cadence zai kasance mai mahimmanci. "