The first dates from c. 1676 .
The first is known variously as Mystery Sonatas , Rosary Sonatas ( Mysterien Sonaten , Die Rosenkranz - Sonaten ) , Copper - Plate Engraving Sonatas , etc. , remaining unpublished during the composer 's lifetime .
The first dates from c. 1676 and is known variously as Mystery Sonatas , Rosary Sonatas ( Mysterien Sonaten , Die Rosenkranz - Sonaten ) , Copper - Plate Engraving Sonatas , etc. , remaining unpublished during the composer 's lifetime .