First of all the staff was friendly and helpful and the venue was clean and well maintained. The displays included a lot of the music that inspired rock and roll musicians/bands. Lots of positives, exhibits were well done, marked and well lit, comfortable venues to listen to music, food service was good, location was ideal, architecture by I M Pei was amazing... A few key bands were missing though... Procol Harem, Moody Blues, ,Steppenwolf, Donovan, Traffic, Jethro Tull, ELO, Journey, only one jacket from Elton John?? Guess this is a work in progress...