Manal was an Argentine rock group. Together with Almendra and Los Gatos, they are considered founders of Argentine rock. The band members were Claudio Gabis on guitar, Javier Martínez on drums and vocals, and Alejandro Medina on bass and vocals. Martínez was the band's lead vocalist and leading songwriter. Trajectory. 1968–1969: Formation. The band grew out of the mythic "La Cueva" club. Martínez was a regular, and Gabis played guitar with several bands, including Miguel Abuelo's Los Abuelos.
https://en.wikipedia.org/wiki/Manal