Marcelino 'Rapindey' Guerra (born in Cienfuegos, Cuba April 26, 1914 - 1996) started working as a musician and a composer in Havana starting in 1931. He was already well-known in the latin music scene when he took a trip to New York in 1944. What was supposed to be a short trip led to a longer stay and a permanent move in 1945, first working with a band assembled with help of Machito and Mario Bauza and later striking out on his own. In the 1940s before the start of the mambo craze, Guerra's band rivaled Machito's Afro-Cubans in popularity. In 1954, Guerra decided to quit as a bandleader and joined the U.S. merchant marine. None of the recordings made by Guerra in the 1940s and 1950s have been re-released thus far as far as I know.
During short shore leaves in between traveling the world with the U.S. merchant marine, Guerra made a small number of recordings in the 1960s.
Busco lo tuyo is well associated with Cheo Feliciano and was recorded in Eddie Palmieri's album, Champagne, in 1968 just before Feliciano had to take a leave from the music business in order to recover from drug addiction. Cheo Feliciano did not make another recording until the album, Cheo, released in 1974 with the hit song Anacaona.