In Galicia these terms are used for "parades" by the (local) pipe band(s) who "march" through the neighbourhood (a village, parish or district of a town) to announce a public event or festival that is usually organised by the local community; Sometimes these "bandas", who play their traditional music, are joined by a local dance group; According to Wikipedia these melodies were probably originating in 17th-century Italy, and usually performed to a fast pasodobre rhythm which consists of three beats of four to eight bars in which variations are made on a main motif; In my experience the local "banda" in which I played did not have such strict rules, because we didn’t really march, but played our favourite repertoire, strolling instead, and pausing every now and then to entertain shopkeepers and bystanders, which is - in my experience - common practice in most villages. Wikipedia, which seems to focus mainly on urban practice, also adds that "in Galicia all the parades, festive or protest, that nowadays pass through the streets with musical accompaniment, usually traditional music, but also brass bands, &c., are known by this name"; NB¹: "Pasacalles" is a general term in Castellano (Castilian Spanish); NB²: Compare Passacalhes (Portugal) and Pasucáis (Asturias).