sentences:  In the 1980s, Los Muñequitos de Matanzas greatly expanded the melodic parameters of the drums, inspiring a wave of creativity that ultimately led to the modernization of rumba drumming.Freed from the confines of the traditional drum melodies, rumba became more an aesthetic, rather than a specific combination of individual parts.The most significant innovation of the late 1980s was the rumba known as "guarapachangueo", created by Los Chinitos of Havana, and "batá-rumba", created by AfroCuba de Matanzas.