Pure tones refer to a specific type of sound that is produced by a pure-tone generator, such as a tuning fork or an electronic tone generator. These sounds are characterized by their simplicity and consistency - they have only one frequency component and no harmonics. Pure tones are often used in audiometry tests to assess hearing ability, as they provide a clear and distinct sound that can be easily detected and measured. In music, pure tones may also refer to individual notes or pitches that are played without any additional overtones or harmonics.