Canarios' Ciclos 1974 is a masterpiece of symphonic progressive rock, featuring a rock adaptation of Antonio Vivaldi's Four Seasons. The album showcases the band's exceptional musicianship and unique arrangements. Despite being known for their pop-rock music, Canarios' year-long hiatus resulted in this exceptional work that is considered a golden gem of Spanish prog. The album features four acts, each with its own unique tracks and themes. The personnel includes Teddy Bautista on keyboards, synthesizer, mellotron, and vocals, Rudmini Sukmawati on vocals, and Antonio Garcia De Diego on guitar and other instruments.