Brooks KM 22 Capo

A clamp-like device that is placed vertically across the guitar neck. It is used to change the pitch of the guitar, acting as a moveable nut.

Harmonic Distortion
The presence of harmonics in the output signal of a device which were not present in the input signal.

Brooks Cinema GT 845 Amplitude
The height of a waveform above or below the zero line.

Layering
The recording (or playing) of a musical part with of several similar sound patches playing simultaneous.

Brooks Cinema QS - 95 Electromagnetic Induction or Pick Up
The generation of electrical signal in a conductor moving in a magnetic field or being close to a changing magnetic field.

Link
(Said of compressors and dynamic processing units.) To combine the control input signals of two channels of a compressor (o

Ground
In electronics, a place (terminal) that has zero volts.

Coincident Microphones (Coincident Pair)
Two microphones whose heads are placed as lose as possible to each other so that the path length from any sound source to either microphone is for all practical purposes, the same.