39.4 was a funk-psychedelic band from the city of Guadalajara, Jalisco state, Mexico. The majority of Tapatio groups such as La Revolución de Emiliano Zapata, Los Spiders, La Solemnidad, Fachada de Piedra, Quinta Visión, etc., were mostly imitations of classic rock bands. 39.4 was the exception and coincided with bands from other sides of the Mexican Republic, with more unique and varied influences ranging from jazz to psychedelic. 39.4 was originally formed as Bandido, and consisted of Luisillo Arciniega Luis Vicente Rivera (trombone), Jose Luis Guerrero (Sax and transverse flute), Ignacio Rodriguez (trumpet) Keno Eugenio Guerrero (bass) and Efren Gonzalez Olvera Bear (guitar). Soon after, they changed their name to 39.4 and produced their first and only LP in 1972 on CBS Records in the US. This original LP is one of the most sought after in the market. The band broke up in 1976.
