tuned
v.v. to adjust a musical instrument or a radio so that it makes the right sound. You do this to make sure the music is in harmony or to find a specific station.
v. to adjust the pitch of a musical instrument or the frequency of a radio receiver to a specific standard or station. Often used in the passive voice when describing the state of an instrument.
He tuned his guitar before the concert started.
The technician tuned the radio to the emergency frequency to listen for updates about the storm.
After the piano was moved across the country, a professional had to be called in to ensure every string was perfectly tuned to concert pitch.
The verb is transitive when referring to the act of adjusting an object; it takes the preposition 'to' when referring to a specific frequency or station.
He tuned the radio at the stationHe tuned the radio to the stationWhen selecting a specific frequency or channel, the verb requires the preposition 'to' rather than 'at'.