Art-Net, sACN/E1.31 and DMX512 are the most commonly used lighting control protocols with roots in simple theatrical light dimming. These days almost any lighting or stage effect equipment may be controlled using these protocols including moving lights, LED screens, fog machines and laser displays.
InstaScale works as a VST instrument and AU MIDI effect plugin. It receives midi data from the controller and swaps it with the processed one. In VST mode the output can be routed to any other instrument in the host application using the available routing functions in that host. The AU version works as a midi effect only in hosts like Logic Pro x that supports the type. There are 16 playing keys that will be used to play the target instrument. What these keys do and where they're placed on the controller can be customized. They can have static offset values like 'Home' or a relative ones like '+2' or '-3'. Using this offset value and the previous note, the plug-in calculate the actual note the key plays. you can read more about the playing keys in the manual. In addition to playing keys there are some control keys that can be used to change and control some of the parameters of the plugin like scale and octave directly from the MIDI controller.
Most of our plugins are virtual instruments, and some editors require you to create a virtual instrument track to be able to use them. Once you've created the track, insert the plugin in it and feed some midi notes to it with either midi editor inside the audio software, or with your midi instrument, once you've made sure the midi instrument is assigned the the track. This process is audio software specific, and a lot of information can be found @ web, youtube and google. 2b1af7f3a8