Structure

Understanding Falcon’s structure and hierarchy is crucial if you want to fathom how library Programs work, and how to make your own Programs.
 

Let's take a top to bottom look at Falcon's structure:

• Multi: the entirety of all Programs is called a Multi. There is always exactly one. It contains one or more...
  Parts: a Part is a kind of container with Midi, Volume, Pan, etc. settings. Each Part contains…
  ...one Program: these are the sounds we can load from the library, or create ourselves. A Program contains...
  ...one or moreLayers, each containing...
  ...one or moreKeygroups. Keygroups have defined key and velocity ranges and can contain...
  ...one or more Oscillators. Falcon provides a variety of sample-based and analogue modelled oscillators.
  In its simplest form, with just one Layer, one Keygroup, one Oscillator, a Falcon Program is structured like this:
  Tree view of Falcon's left sidebar.
  
  
• A Midi signal will pass Falcon's Program and Layer levels (maybe manipulated by an Event Processor), and finally arrives at Keygroup level with its oscillator(s) (top - down control signal flow).
• The resulting audio signal then takes the opposite direction: oscillator audio signals will be processed first by Keygroup, then by Layer and, finally, Program level effects (down - top audio signal flow).
  Within a Keygroup, the signal first passes an (optional) Fx, then the (invisible) Vca with its amp envelope, then reaches the Layer.
• The advantage of this fixed and clear hierarchy is that editing in Falcon is - given the amount of possibilities - quite lucid and straightforward.
• Fx  and Modulation sources  can be inserted on every level of Falcon’s hierarchy.
• Event Processors can only be inserted on Program and Layer levels.
• There are some limitations though, but you can live with it if you know what's feasible and what's not :
  
  (1) If the mod destination is on Program and Layer level, most envelopes won't work, and LFOs cannot be (re)triggered. Details here.
  (2) On Keygroup level, you have a limited range of Fx, mainly because of CPU-saving reasons. There are no Delay, Reverb (except Diffusion), and Modulation (except Frequency Shifter) effects on Keygroup level.
  (3) On Layer level, Event Processors cannot handle Midi CC signals; details here.