 He not only wrote for drums tuned to intervals other than a fourth or fifth, but he gave a prominence to the instrument as an independent voice beyond programmatic use.For example, his Violin Concerto (1806) opens with four solo timpani strokes, and the scherzo of his Ninth Symphony (1824) sets the timpani (tuned an octave apart) against the orchestra in a sort of call and response.The next major innovator was Hector Berlioz.