A countertenor is a male singer who possesses a vocal range that typically lies between the alto and soprano ranges. This unique voice type often uses a falsetto technique to achieve higher notes, allowing them to perform music originally written for female voices. Countertenors are commonly found in Baroque and Renaissance music, where they often take on roles traditionally sung by women. Countertenors have gained popularity in modern classical music and opera, showcasing their abilities in various genres. Notable countertenors include Andreas Scholl and David Daniels, who have contributed to the revival of this voice type in contemporary performances.