Mozart’s final year was a difficult one, as his employment was precarious, his financial situation usually quite desperate, and his wife Constanze frequently in ill health and at the spa in Baden, near Vienna, for treatments. On one such occasion in June of 1791, Mozart visited her and while there composed a short sacramental anthem for his friend Anton Stoll, organist and choirmaster of the Baden parish church. The exquisite Ave verum corpus (K.618) was the first piece of sacred music he had ...