Which diameter of Timpani has a range of Bb2-F3?

The 25-inch timpani drum is known for its specific pitch range, which typically covers Bb2 to F3. This size is designed to produce lower pitches, making it suitable for this particular range. The construction and tension of the drumhead, alongside the size of the drum, are critical factors in determining the fundamental pitch and overtones produced.

In the case of timpani, larger diameters of drums, such as the 30-inch, generally produce lower pitches, while smaller diameters yield higher pitches. The 28-inch drum also covers a different range that does not align with Bb2-F3. The 23-inch drum is designed to resonate at even higher pitches, hence it cannot produce the specified range. Therefore, the 25-inch drum is specifically suited to achieve the Bb2 to F3 pitch range effectively.