Duke Bardwell's bass parts were removed, and
re-done by Norbert Putnam on all tracks.
Nothing is mentionned in Sessions III regarding 'Pieces Of My Life' having the
bass part re-done on April 8, although it was
re-done on this date.
By taking out two of the four channels from the rare Quadraphonic LP of Elvis Today is how the "previously unreleased and undubbed versions" were created on the bootleg Yesterday / Today (Bilko).