This recording explores some of the lesser-known music from 18th-century Vienna that combines solo voice with virtuoso trombones. Many of the arias presented on this CD are drawn from the large-scale oratorios performed in the Imperial Chapel. The music, much of it recorded here for the first time, is by established composers such as Caldara and Fux as well as lesser-known figures like Ziani, Porsile, Tuma and Casati. Alongside countertenor voice and trombones, the ensemble also includes bassoon, violins and continuo, thereby creating an attractive variation of color and timbre throughout the recording.