Complex sentence: He composed music for the first Australian visit of a pope, Pope Paul VI at both Randwick and at St Mary's Cathedral, Sydney, in particular for this occasion he composed a "papal entry and march" version of Psalm 85.
Split into simpler sentences: He composed music for the first Australian visit of a pope, Pope Paul VI at both Randwick and at St Mary's Cathedral, Sydney. In particular, for this occasion he composed a "papal entry and march" version of Psalm 85.