Homonym: tuner (Musical)
A tuner is a device used to adjust the frequency of a radio or television signal, ensuring that the device receives clear audio or video. Tuners can be found in various electronics, including radios, televisions, and musical instruments. They help users select specific channels or frequencies to access desired content.
In the context of music, a tuner is an essential tool for musicians to ensure their instruments are in tune. It measures the pitch of a sound and indicates whether it is sharp, flat, or in tune. This is particularly important for instruments like guitars and pianos.