Kalmar “bangare” a mahallin kida tana nufin wani fitaccen layin waqoqi ne ko na jituwa a cikin abin da wani mawaqi ko rukunin mawaqa ke yi. A cikin rukunin kiɗan, kamar ƙungiyar mawaƙa ko ƙungiyar mawaƙa, kowane memba yakan yi wasa ko rera wani takamaiman sashi wanda ke ba da gudummawa ga ɗaukacin sautin wannan yanki. , kuma yawanci yana da nasa bayanin kida na musamman. Misali, a cikin abun ciki na choral, ana iya samun sassa daban-daban don soprano, alto, tenor, da muryoyin bass. A cikin ƙungiyar makaɗa, akwai sassan da aka keɓance don kayan kida daban-daban, kamar violin, cello, sarewa, ko ƙaho. hadaddiyar kida mai hadewa. Sassan na iya samun nasu karin waƙa, jituwa, ko kari, kuma sau da yawa suna mu'amala da juna don ƙirƙirar tsarin kiɗan mai sarƙaƙƙiya.