Compositions
Guerrero had been known as a versatile composer in Santiago. In addition to a number of chamber works and piano solos, he wrote music for 4 or 5 operettas and zarzuelas (now lost) which were produced in Chile between 1908-15. However, after moving to Canada, Guerrero focused more on teaching, though a couple of piano works (Tango and Southern Seas) were published in 1937. He also collaborated with his wife Myrtle Rose Guerrero to co-author The New Approach to the Piano (2 vols., 1935–36).
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