Otto Ketting’s Intrada is an unaccompanied work that was originally written for trumpet.  Today it is performed by both horn players and trumpet players.  The piece pays tribute to the early ancestry of brass instruments as signaling devices with its fanfare-like calls.  The work begins in a slow, expressive manner and gradually grows louder and more rhythmically complex.  The music builds to a first climax that is followed by the opening motif.  It then moves on to a series of signaling or hunting calls that lead to the final climax of the piece.  The work concludes with a restatement of the opening motif and a short codetta.