OK, stop that sniggering in the back of the class: “Sackbut” is just an archaic name for the early trombone. The Music City Baroque Ensemble features the mellifluous brass instrument on several numbers in a concert exploring the breadth of German Baroque music. They’ll give us the well-loved Bach motet Loben den Harren, along with works by 17th century masters Schütz and Buxtehude. The group has enlisted a chamber chorus of 12 expert Baroque singers for the occasion, augmented by student singers from Blair for a rousing double-choir finale from Schütz’s 1650 Symphoniae sacrae. The program digs deep into the Germanic repertoire with some lesser-known composers: Nicholaus Bruhns, who was a beloved pupil of Buxtehude; Johann Heinrich Schmelzer, an influential violinist and composer at the mid-17th century Hapsburg court; and Bohemian-born Franz Ignaz Tůma, who made his own mark in Vienna in the following century. Looks like another fascinating and edifying program from Nashville’s excellent, historically informed ensemble. Admission is $10, and $5 for seniors and students.