Bell Ringers´ Room, Church St. Mary The Great, Cambridge, UK on Sunday 09th August, 2015

"Four Leads of Bristol Suprise Maximus" is the title of the sequence.
In total they rang 194 changes, i.e. every ringer pulled his rope 194 times.
If you listen carefully near the beginning you can hear the conductor say "Go Bristol" [at 01:12]- that is when ringing the changes begin. Before that they were ringing "Rounds" (bells 1 to 12 in order).
Bristol is the name of the "method" which is the mathematical pattern of how ringings commenced, whereas "Maximus" means 12, i.e. all 12 bells were ringing.
(Many thanks to chief ringer Frank King [from 00:38 in left corner] for the explanation, which hopefully helps viewers to understand the beauty of how it works.)