Composers usually omit the key signature for timpani parts.
The first draft had neither trumpet and timpani parts; Haydn added those later.
Many of his timpani parts require such a range of notes that it would be unthinkable to attempt them without pedal drums.
There has been at least one attempt to reconstruct the timpani part.
The timpani part in Act 1 would not be possible to play without the use of at least three pedal timpani.
The first movement draws on BWV 99 with added horn and timpani parts.
An optional timpani part is also added in the Sibelius piece.
Will Riker felt as if somebody had been playing the timpani part from the "1812 Overture" on his skull.
Subsequently the second version included a second bassoon part and a timpani part.
"We brought in a bass player who rewrote all the timpani parts, and now the timpani is playing the melody."