The 17 Church or "Epistle" Sonatas were composed between 1772 and 1780. They are short single-movement pieces intended to be played during a celebration of the Mass.
Three of the sonatas are scored for small Orchestra including Oboes, Horns, Trumpets and Timpani and the rest are scored for Organ and Strings without Violas.
The Sonatas in this Volume 3/4 are the Sonata in C major K.278 (2 Oboes, 2 Trumpets, Timpani, Strings, Organ) and the Sonata in C major K.329 (2 Oboes, 2 Horns, 2 Trumpets, Timpani, Strings, Organ).
Volume 1: BA4731
Volume 2: BA4732
Volume 5: BA4735