Viscount Viva, Руководство пользователя

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VIVA Series - Digital Piano
26
Layer and performance concepts
The layer is an area on the keyboard associated with a particular
sound: its extension is user defined.
Viva
has two layers, therefore can reproduce up to two sounds at
the same time, one above the other or “split” on the keyboards.
Each layer has an independent volume, it has also its proprietary
dynamic and other customization parameters, such as the MIDI
transmission channel.
In addition to the “note” data, the layer contains all setup and MIDI
control data to be sent out when it is recalled (such as Program
Change, Bank Select, aux Control Change, default control data).
The Performance can be defined as a program that contains all
information that prepare the instrument to a certain setup.
In a Performance, for example, in addition to the timbres selected
for the two layers, can be stored the Key Velocity response curves
(dynamic), and can be set the MIDI channels in reference to the
layers, the Program Changes, the controls, and other parameters
that we will examine later on in this manual.