Udo've seen live in Stuttgart - unbelievable what he still turned to her feet - usually much fitter than his own audience. I think anyone who has seen him on his tour will love these wheels. Besondes worth mentioning for me is the sound recording. Certainly slightly overstated in the basses - comes at a real good investment a great "live sound" over. I think one should not always discuss about the deeper meaning but simply say - make CD's verdampt fun