Defining the most unusual sounding voice in music is subjective and can vary depending on individual tastes and preferences. However, there are a few notable musicians with distinctively unique voices. Here are a few examples:
Tom Waits: Tom Waits is known for his gravelly and raspy voice, often described as sounding like a combination of a rusty hinge and a whiskey-soaked baritone. He achieved this unique sound through a combination of smoking, heavy drinking, and deliberately altering his vocal technique to create a distinctive timbre.
Björk: Björk's voice is characterized by its wide vocal range, unconventional vocal techniques, and distinctive accent. She experiments with various vocal styles, including breathy whispers, powerful belts, and melodic flights. Her unique sound is a result of her creativity, experimentation, and the way she expresses herself through her vocals.
Antony Hegarty (of Antony and the Johnsons): Antony Hegarty possesses a haunting and ethereal voice that is often described as androgynous and otherworldly. His vocal style combines vulnerability, strength, and an expansive range. His unique sound is a result of his vocal control, emotive delivery, and a distinctive vocal quality that resonates with listeners.
Yma Sumac: Yma Sumac was a Peruvian soprano with an exceptionally wide vocal range and a voice that could effortlessly transition from deep, resonant tones to soaring high notes. She achieved her unique sound through rigorous training and natural talent. Some speculated that she had an incredible vocal range due to hereditary factors or techniques learned from indigenous Peruvian singing traditions.
These are just a few examples of musicians with unusual sounding voices, and there are many more artists with distinctive vocal styles and techniques. The uniqueness of their voices often arises from a combination of natural talent, training, experimentation, and personal expression.