Ma'anar ƙamus na "bangaren tagulla" rukuni ne na kayan aikin tagulla waɗanda ake kunna tare a cikin ƙungiyar mawaƙa ko ƙungiyar makaɗa. Wannan yawanci ya haɗa da kayan kida kamar ƙaho, trombones, ƙaho na Faransa, da tubas. Sashen tagulla muhimmin sashi ne na nau'ikan kiɗan da yawa, gami da na gargajiya, jazz, da shahararriyar kiɗan.
