Guridi achieved particular international renown with the Diez melodías vascas (1941), a fine example of a nationalist orchestral work, the Sinfonía pirenaica (1946), the Homenaje a Walt Disney (1956) for piano and orchestra, the String Quartet in A (1950), and the Seis canciones castellanas (1943), among others. As well as composing many highly regarded pieces for organ, including the Tríptico del Buen Pastor, he also wrote a number of film scores and composed incidental music for the theatre. Organ professor of the Madrid Conservatory for some years, Guridi was appointed it's director in 1956, remaining in the post until his death five years later, by which time he had been distinguished with many awards and honors. Guridi's piano works range from brief personal sketches to large-scale fantasies for piano and orchestra. His usual way of working was to create cycles of independent pieces, generally based on Basque folk music, limiting himself to a number of very specific stylistic parameters, overall austerity and idiomatic or atmospheric changes according to the character, poetic, festive or dramatic, of the original melody.