Complex sentence: The "Dead March" played in Act Three, introducing the obsequies for the deaths of Saul and Jonathan, is in the key of C major, and includes an organ part, and trombones alternating with flutes, oboes and quiet timpani.
Split into simpler sentences: The "Dead March" played in Act Three, introducing the obsequies for the deaths of Saul and Jonathan, is in the key of C major. It includes an organ part, and trombones alternating with flutes, oboes and quiet timpani.