Players however, must overcome the odd adversity including--timpani drums and rousing horn section cued--shareholders.

FORBES: Magazine Article

Just listen to the opening, pounding, declarative timpani at the start of this symphony (audio).

NPR: Marin Alsop: Orbiting the Symphonies of Brahms

In the 1600s, however, opera composers began including trumpets among the instruments of the orchestra, where they were often paired with kettledrums (timpani) to provide festive or martial effects.

NPR: Young Tuba Player Gets Nod from Phila. Orchestra

We went from the original instrumentation of strings and a handful of winds to a rocking jazz rhythm section consisting of Hammond B3 organ, gospel piano, drums, electric guitar, Fender bass and acoustic bass, five saxophones, full brass, strings, timpani and percussion.

NPR: An Updated 'Messiah' from Marin Alsop