Despacito

Despacito is a quintessential example of the 'four-chord loop' in contemporary pop. Its harmonic identity is defined by the i-VI-III-VII progression in B minor. While many Western pop songs use the Major 'vi-IV-I-V' (which would be Bm-G-D-A in the key of D), Despacito treats Bm as the clear home tonic (i). The use of the A major chord (VII) instead of a functional dominant F# (V) provides a smooth, modal Aeolian sound that facilitates the seamless repetition required for Reggaeton's rhythmic focus. The harmony is functional but non-directional, creating a 'static' harmonic field that keeps the listener focused on the syncopated 'Dem Bow' beat.

Luis Fonsi woke up with the melody and the 'Despacito' hook in his head. He reached out to co-writer Erika Ender and they collaborated on the lyrics at Fonsi's house. Initially intended as a cumbia-pop track, the song was later infused with urban reggaeton elements when Daddy Yankee joined the project.

Despacito is a landmark collaboration that merged traditional Latin pop with urban reggaeton rhythms, creating a worldwide cultural phenomenon. Its massive success, later bolstered by a Justin Bieber remix, redefined the commercial potential of Spanish-language music on the global charts.