Nick's performance in live concerts is amazing. If we watch the videos released, we can understand the real Nick's contribute to P.F. excellency. Performances like in 1970's Kralinger, 1972's Pompeii, 1980/1 The Wall are the perfect examples. And more recently though being "helped" by percussionists like Gary Wallis, he can still do is job.

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"thought i oughta bare my naked feelings;
thought i oughta tare the courtain down"