Patent ID: 7888577

Claim:
A control device for connection to a musical instrument amplification device, the amplification device having a plurality of amplification parameters, which may be set by use of a first plurality of controls, the control device comprising: a second plurality of controls, at least one of said controls being a user-definable control, each of said user-definable controls being operable to perform a ‘preset store’ operation wherein the current set of amplification parameters of the musical amplification device may be stored by said control device, and assigned to one of said user-definable controls, such that thereafter said set of amplification parameters is recalled when said one of the user-definable controls is actuated and each of said user-definable controls being further operable to perform a ‘key store’ operation wherein the function of one of said user-definable controls is assigned to the function of a selected one of said first plurality of controls, wherein each of said user-definable controls is operated by a single actuation.