I'm unable to listen to audio or musical excerpts directly. However, I can help you identify the instruments based on their characteristics.
- Trombone: A brass instrument that uses a slide to change pitch and has a bright, powerful sound.
- Tuba: The largest brass instrument, known for its deep, rich sound.
- Cello: A string instrument played with a bow, known for its warm, mellow tones.
- English Horn: A double-reed woodwind instrument, similar to an oboe but with a deeper, more lyrical sound.
If you describe the sound or characteristics of the melody, I could help deduce which instrument it might be!