This audio titled "Metal Tube 04" captures the unique sounds produced by a metal pipe. The recording was done in an open field, thus, it carries the subtle echoes one might hear when in such open spaces. The metallic resonance is clear and distinct, offering an almost tactile sense of the pipe's cold, hard surface. The sounds vary, from high-pitched tingling noises to deeper, hollow sounds, perhaps produced by striking or blowing through the pipe. The field-recording technique used in capturing these sounds adds an organic feel to the audio, making it seem as though the listener is right there in the open field with the metal tube.