Yes, I can agree with the previous speakers only. When I listen to this disc - bought in 1974 as a vinyl LP - running me a pleasant shiver through the grief-stricken back. This music with its multifarious melodies arches have then pulled me out of my Hard Rock world and washed away. Who often dreams with open eyes, for this disc is a must. Most it comes over me at "La Cathédrale de Strasbourg" with its sacred sounds and of course the title track "Hamburger Concerto" with its playful 20 minutes duration. All the decades it has brought me back from gloomy thoughts back. The others have already said everything there is to praise here. From me there again 5 ***** star.