Since the Butterfield Band was part of the musical dna of the time ('65-'67 and into the '70's) the scene (Filmore et al) and a vital connection with past (Muddy, W. Dixon, W. Jacobs) masters and the outpouring of the likes of The Electric Flag, Janis Joplin, The Loading Zone, and many others, then the vaults must be holding Butterfield shows that