Pitch

Pitch may refer to:

Acoustic frequency

Pitch (music), the perceived frequency of sound including "definite pitch" and "indefinite pitch"
- Absolute pitch or "perfect pitch"
- Pitch class, a set of all pitches that are a whole number of octaves apart
- Relative pitch, the ability to identify a given musical interval between two notes
Pitch accent, a form of accentuation in speech

Sales pitch, a line of talk that attempts to persuade someone or something
- Pitch (filmmaking), a proposal for a film
- Elevator pitch, a very short sales presentation, allegedly short enough to be made during an elevator ride

Pitch (aviation), one of the aircraft principal axes of rotation (nose-up or nose-down angle measured from horizontal axis)
Pitch, one of the angular degrees of freedom
Pitch or grade (slope), the steepness of a slope or an object confirming to a slope
- Roof pitch relates to the slope and inclination angle
Pitch, or rake, in geology, the angle between a line and the strike of the plane on which it was found

"Pitch" is widely used to describe the distance between repeated elements in a structure possessing translational symmetry:

Pitch (gear), the distance between a point on one tooth and the corresponding point on an adjacent tooth
Pitch (screw) the distance between turns of a screw thread
- Blade pitch the distance between the front edge and the rear edge of a propeller blade
- Pitch, the distance between passes in the helical scanning pattern of X-ray computed tomography
Pitch (typewriter), the number of characters and spaces in one inch of running text
Pitch, the distance between bits in a parallel integrated circuit element such as a register file
Dot pitch in images
Pin pitch, the distance between centers of pins in electronics packaging
Seat pitch, the spacing between seat rows in an aircraft