The primary objective of this research is to identify the characteristic sounds of Castilian cities in the late Middle Ages, embracing an expansive understanding of the term, and specifically focusing on the sounds emanating from artisanal and commercial activities as recorded in municipal and judicial documentation. This research endeavors to examine how sounds functioned as instrumental devices in shaping the identification, social hierarchies, and power relationships that contributed to neighborhood disputes. The urban centers selected for this study are located in various regions of the Castilian Crown, including Hita, Albacete, Alcalá de los Gazules, Becerril de Campos, Madrid, León, Córdoba, Toledo, Medina del Campo, Écija, Segovia, Murcia, and Sevilla. This selection serves to prioritize a general study of urban life in Castile, with the intention of highlighting recurring or singular practices related to the sonic emissions of the period and potential variations in the perception of acoustic phenomena among the inhabitants.