Retune

Retune is a verb meaning to tune again or to adjust tuning to a different pitch, standard, or setting. The term combines the prefix re- with tune, and is used across domains where precise pitch or frequency control is important.

In music, retuning is routine maintenance or instrument adjustment. A piano may be retuned to restore concert pitch, or a stringed instrument may be retuned for a different key or temperament. In some contexts, retuning also refers to changing pitch with a deliberate microtonal or alternative tuning system, such as drop tunings on guitars or alternate temperaments on keyboard instruments.

In broadcasting and consumer electronics, retuning refers to adjusting a receiver to locate and decode channels as frequencies or channel lineups change. This occurs when new channels are added, broadcast bands shift, or regional services are updated.

In digital audio work, retune can describe altering the pitch of an audio signal. This includes pitch correction and formant-preserving retuning used in music production, as well as real-time pitch shifting in live performance software. The term can also appear as a product or feature name, but is generally descriptive of the action of tuning again.

Overall, retuning is characterized by a return to a tuning reference or adaptation to a new one, whether for musical performance, reception of radio/television signals, or digital audio processing.