Totally jumping around, but regarding the controls on Phil's bass: page 14 of the liner notes to the new Winterland box set say the following about Phil's new bass:
Phil's new bass, for instance, was the first quadrophonic bass ever made. Each string had a separate signal. On each of the bass and treble pickups there were five controls, which enabled him to select 1) the bandwidth of the filter, 2) the center frequency of the filter, 3) the kind of filter he used, 4) how much of the filtered sound reached the speakers, and 5) to mix the unequalized and unfiltered direct sound.
Of course there's a picture of the Godfather pictured
in this thread. The liner notes were written by Dennis McNally.
(Message edited by hieronymous on April 08, 2008)