Question: Luis Gianneo was teacher to what composer who died February 18, 2010?
Related documents: [0]  [DOC] Luis Gianneo (1897–1968) was an Argentine composer, pianist and conductor. As music educator, he was the teacher of composers Ariel Ramirez, Juan Carlos Zorzi, Virtú Maragno, Pedro Ignacio Calderón and Rodolfo Arizaga, among others. [END] 
[1]  [DOC] Ariel Ramírez (4 September 1921 – 18 February 2010) was an Argentine composer, pianist and music director. He was considered "a chief exponent of Argentine folk music" and noted for his "iconic" musical compositions. [END] 
Answer: 
Ariel Ramírez
Ariel Ramírez