Frames with different pitches need to be used in order to determine how many pitch levels there actually are.
Stops of different pitch levels are designed to be played simultaneously.
At the turn of the 1950s, this was replaced by concrete terracing, cut to go below pitch level.
The melody is first heard in fragments and at a different pitch level than the original Virelai.
The managers' benches are set into this banking in front of the stand at pitch level.
A single scale can be manifested at many different pitch levels.
As the character players have created attack, they repeat the sound or words the player used to create them, sometimes using a different pitch level.
Singing at too low a pitch level is not as likely to be damaging unless a singer tries to force the voice down.
The result of this is a number of windows at pitch level.
This practice reflects the wisdom that pitch levels were lower in 1798 than in 1998.