: The track utilizes a consistent 4/4 beat with a prominent deep bass line, a hallmark of traditional kizomba.

Kizomba, which originated in during the late 1970s and early 80s, is characterized by a slow, sensuous rhythm derived from a fusion of Semba and Zouk . Alekxei’s version of "Ayer" transforms Estefan’s original lament into a danceable yet emotive track.

Alekxei is a prominent figure in the , known for his ability to modernize traditional styles. Released as a single in early 2020 and later appearing on his Album para Amar (2020), "Ayer" served as a significant cross-cultural project that introduced his style to listeners familiar with the original Gloria Estefan track . It remains a celebrated example of how international pop classics can be successfully reimagined through the lens of African urban rhythms.

: The song reflects on memories that remain vivid despite the time that has passed, a sentiment that aligns perfectly with the "saudade" (melancholic longing) often found in Lusophone music.