Hamburger Concerto

Hamburger Concerto is the fourth studio album by the Dutch progressive rock band Focus, released in April 1974. It peaked at No. 20 on the UK charts. The title track is based on Variations on a Theme by Haydn by Johannes Brahms. The composition also incorporates the first two verses of the Dutch Christmas carol O Kerstnacht, schoner dan de dagen at around 15 min. The first track is based on a Gaillarde of Joachim van den Hove of his work Delitae Musicae.

Personnel

 * Focus
 * Thijs van Leer – Hammond organ, flute, piano, harpsichord, moog, ARP synthesizer, recorder, mellotron, accordion, pipe organ, the organ of St.Mary the Virgin, Barnes, vocals
 * Jan Akkerman – guitars, lute, timpani, handclaps
 * Bert Ruiter – bass guitar, autoharp, triangles, finger cymbals, bells, handclaps
 * Colin Allen – drums, congas, tambourine, castanets, cabasa, wood block, gong, timpani, handclaps, flexatone, cuica