close harmony

His three friends, in close harmony, try to persuade him to stay.

Sometimes it can be close harmony but then often it's not, unfortunately.

They helped popularize close harmony, a genre of country music.

They are primarily known for their a cappella singing and close harmony.

The control subsystem functions in close harmony with the operating system.

They are still acclaimed widely today for their famous close harmonies.

He walked over to the radio, which was still transmitting close harmony to its audience of three, and switched it off.

They sing good close harmony for us most nights.

The Gujars lead a technologically simple life in close harmony with its natural environment.

The group will close with some of its lighter numbers, performed in close harmony.