Who did Luis Gianneo teach, who became considered a chief exponent of Argentine folk music?
Luis Gianneo:  As music educator, he was the teacher of composers Ariel Ramirez, Juan Carlos Zorzi, Virtú Maragno, Pedro Ignacio Calderón and Rodolfo Arizaga, among others. Ariel Ramírez:  He was considered "a chief exponent of Argentine folk music" and noted for his "iconic" musical compositions.
i don't know