In the audio titled "Extending Trombone 6", we are welcomed by the distinct, rich sound of a trombone being played. The trombone's notes seem to evolve, shifting and transforming throughout the audio. The transformation of sound is achieved through the stretching and contracting of the trombone slide, which creates a unique, dynamic melody. It's a harmonic dance between the musician and the instrument, a demonstration of how the length of the trombone slide can be manipulated to produce different pitches. The stretching of the trombone slide is done in a rhythmic pattern that adds a layer of complexity to the sound. The audio ends leaving the listener with a sense of the unlimited potential of musical expression through a single instrument.