Delivered by Intellect to: International Society for Metal Music Studies (id22999499) IP: 68.39.48.43 On: Thu, 14 Dec 2023 12:00:51 MMS 8 (1) pp. 47–68 Intellect Limited 2022 Metal Music Studies Volume 8 Number 1 www.intellectbooks.com 47 © 2022 Intellect Ltd Article. English language. https://doi.org/10.1386/mms_00067_1 Received 21 August 2020; Accepted 4 October 2021 NELSON VARAS-DÍAZ Florida International University BRIAN HICKAM Indiana Institute of Technology SUSANA GONZÁLEZ-MARTÍNEZ University of Granada MARIO CASTAÑEDA Universidad de San Carlos de Guatemala FERNANDO GALICIA POBLET Sociedad General de Autores y Editores (SGAE) and International University of Valencia ALFREDO NIEVES MOLINA Institute of Anthropological Research, UNAM EMILIANO SCARICACIOTTOLI Universidad de Buenos Aires and Universidad Nacional de las Artes Toda la sangre formando un río: 1 Contributions to the histories of metal music studies from the Spanish- speaking world 1. Toda la sangre formando un río (‘All blood forming one river’) is a line from the poem Son Número 6 by Cuban poet Nicolás Guillén. The phrase is frequently used onstage by the Cuban metal band Tendencia as a call for unity.