Focus-Hamburger Concerto (1974)

This legendary Dutch band revolutionized the world of rock in the early 70s, largely thanks to the unparalleled talent of Jan Akerman and Thijs Van Leer. Akerman is one of the greatest guitarists in history, both electric and acoustic, as well as a master of the medieval lute, while Van Leer is an accomplished keyboardist on the harpsichord, piano, and Hammond organ, and is considered one of the best flautists in contemporary music. Before the release of "Hamburger Concerto", Focus had released several works oriented towards progressive jazz, featuring extensive jams, tracks brimming with blistering instrumentation, and an impressive interplay between the organ, flute, and a remarkable guitar. This fourth release showcases pure progressive rock, as demonstrated by the title track, an expansive piece that occupies the entire second side, where Jan Akerman and Thijs Van Leer share the lead vocals on a track built upon a foundation of classical music. While side A features the Renaissance-inspired "Delitiae Musicae", the enchanting "La Cathedrale de Strasbourg", the powerful "Birth", with one of the most legendary solos in history by Akkerman, and the forceful progressive jazz track "Harem Scarem". "Hamburger Concerto" is the greatest achievement in Focus's career and one of the high points of the progressive rock genre in the 1970s.