"Conexión Harmony 1974" most likely refers to the final years and eponymous work of the seminal Spanish soul-jazz-rock ensemble, , and their album Harmony . The Band: Conexión (1969–1974)
: Their sound was heavily inspired by prominent American "brass rock" bands such as Blood, Sweat & Tears and the Chicago Transit Authority .
1974 marked the end of the band's active era. In the broader musical landscape of that year, "Harmony" was a recurring theme across different genres: