Free Jazz Standard Sheet Music Downloads

"What a Diff'rence a Day Made" is a popular standard originally composed in 1934 by Mexican songwriter María Grever under the Spanish title "Cuando vuelva a tu lado" ("When I Return to Your Side"). English lyrics were written by Stanley Adams, transforming it into an American pop standard.

Typically played in C major (also in D-flat or G) with a 32-bar AABA form, the song beautifully merges Latin melodic passion with American popular song craft. The opening phrase is instantly recognizable and irresistibly catchy. The harmony is grounded in ii-V-I progressions but enriched with chromatic movements that preserve the tune's Latin flavor. It is performed in both swing and Latin arrangements, and its dramatic emotional arc—from longing to joyful reunion—makes it an enduring favorite among vocalists.

The most celebrated recording is Dinah Washington's 1959 version, which won a Grammy Award for Best Rhythm and Blues Performance. The early 1934 recording by the Dorsey Brothers, with vocals by Bob Crosby, is also historically significant as one of the song's first English-language recordings.