Nevertheless Paczian's baton ensured crisp delivery and conviviality of spirit. The opening tutti was thrilling, bass lines strode with authority from the start and horn and oboes were agreeably mellow.
After the interval, the full forces of Bach Musica gave us the Southern Hemisphere premiere of Heinrich Biber's Missa Bruxellensis.
Intended as a spectacular piece of public worship in Salzburg Cathedral, this score was a mammoth undertaking for the group.
Orchestrally, Paczian achieved an attractive blend, with a strong double reed section, generally reliable trumpets and idiomatic strings. James Tibbles' continuo work on chamber organ was a model of excellence.
The choir was in good form, with confident fugal sorties and impressive vocal control in Biber's often massive chordal writing.
Jayne Tankersley's clear soprano solos floated over proceedings but she had the perfect foil in Sarah Court's securely focused alto.
Three male soloists (Anthony Schneider, Michael Gray and Moses Mackay) impressed with their confidence and sense of style.
Afterwards one could feel the deep appreciation from both audience and musicians for being able to experience this piece.
Doubtlessly, many will be looking forward to Bach Musica's unusual Christmas offering on December 17 - Berlioz's L'Enfance du Christ.