Los Belkings - Los Belkings (Ayer y Hoy) (1973)

Los Belkings (Ayer y Hoy) is the fourth studio album by the Peruvian instrumental rock band Los Belking's, released in 1973 on the El Virrey label.

The album is considered one of the band's most mature works, incorporating their signature surf rock and psychedelic sound with elements of progressive rock and orchestral arrangements.

This album is often noted for its technical complexity and melodic appeal, making Los Belking's one of the most influential instrumental groups in Latin America at the time.