concert pitch

noun

1. Music. a standard of pitch used for tuning orchestral instruments, usually established at 440 vibrations per second for A above middle C.
2. a state of heightened eagerness, readiness, or tension:

   Spring training had brought the athletes up to concert pitch for the beginning of the season.

concert pitch

noun

1. the frequency of 440 hertz assigned to the A above middle C See pitch 1 international pitch
2. informal.
   a state of extreme readiness

Word History and Origins

Origin of concert pitch¹

First recorded in 1760–70