Dictionary
con'cert pitch"
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. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.