Ekseption

Ekseption was a Dutch progressive rock ensemble with changing membership, active from 1967 to 1989, growing out of the bands The Jokers and Incrowd. The group started out playing jazz, pop and R&B covers, but, impressed by a gig of The Nice, Rick van der Linden decided to concentrate on producing classical rock, modern re-interpretations of classical works with bass, drums and horn charts. Most of their albums contain both original songs and re-interpreted classical pieces.

source: Wikipedia