Through ZPZ, DZ has given the music of FZ, his father, a new life for this and future generations to witness live. These musicians must be dedicated to the craft of performing the complex compositions of Frank Zappa. In my opinion, their musical abilities, individually and collectively, are nothin short of amazing.
"In tribute" not "a tribute."
No other person could do better.
Having seen two Zappa 'tribute' acts, namely the muffin men and the grandmothers,I would say that the muffin men were merely a mediocre r'n b band whilst the grandmothers I thought were pretty good.People need to understand that ZPZ is not a tribute band,though fans of great musicians will always want to hear the music in a live performance and the nearest approximation will have to do .