Renaissance. The Sinfonia & Chorus of Spirits presented here is certainly important both in the history of music and the history of the trombone as well as a magnificent composition. The Sinfonia & Chorus of Spirits comes from "Orfeo" by Claudio Monteverdi. "Orfeo" was first produced in 1607 in Mantua, Italy and is widely regarded as the first opera. In it Monteverdi indicated that 5 trombones were to be used. Enjoy this early, historic music for trombone. It is elegant music and worthy of performance as well as being historic in so many ways. -the arranger