|16855||81||The Blackburn Cathedral Chant Book (T. L. D. Memorial Chant Book) (Bertalot, John)||64||1‑c||A major||147(All, except Gloria)
Quadruple chant, based on a double chant by G.C. Martin (no.1a). The second part of the quadruple is an adaptation by John Bertalot of the original chant, with the original melody in the tenor. Vss. 11 and 20 sung to the section.
|33470||131||Neville Richards Private Collection (Neville Richards)||124||1||G major||147
Double chant by George Martin extended to a Quadruple by John Bertalot