very interesting remarks here on page 12 by rowuk. listen to the franck d minor symphony on the thread "franck and the missing cornets" here on TM. this was a concert done on original romantic instruments. whether they are "original originals" or reproductions of those instruments doesnt matter. this was my first experience listening to an orchestra with the low F trumpets, as well as the A cornets, and other brass to match, and i found it to be a revelation. there is a transparency to the sound of the orchestra playing a tutti fortissimo that i have never heard before. the brass sound is certainly not devoid of volume or brilliance, but one can hear all the instruments in the orchestra-clearly-all the time. i thought it to be truly remarkable.