The audio begins with a low, eerie hum, indicative of the unique sound produced by a theremin. The sound is soft at first, gradually increasing in volume, creating an intriguing and somewhat spooky atmosphere. As the audio continues, it captures your attention with a slow, steady slide from the low range up to the high, showcasing the theremin's remarkable versatility. The low hum morphs into an almost ethereal high pitch, oscillating and fluctuating with a spectral quality that is undeniably captivating. The audio ends with an extremely high note, leaving you with a sense of awe at the theremin's range and unique sound.