Next comes the breakstrain or "breakup strain" (sometimes called the "dogfight" or "interlude"), making it the fourth melody heard. This strain is loud, intense, and marcato. Its purpose can be found in its title, as it literally breaks a gap between the trio sections, providing contrast to the usually softer trio melodies and generating excitement for the listener. Most breakstrains resemble a conversation between the upper woodwinds and the low brass. The final measures typically contain tension-building chords or chromatic motifs.