NOT ENOUGH POLYPHONY? AN IDEA!
If you find that you have not enough DSP power to handle let's say 14 notes polyphony you absolutely need for your music, coming from a modular synth or other demanding synths, there is a way to tackle it, very unorthodox indeed, but it works!
First, choose the most similar sound you've got using a Sample Player. Insert, into the polyphony box called "Voices", the number of notes you need (in this example 14), then record it into MIDI part.
When your performance is perfected, you copy your MIDI part making a duplicate of it. Make sure you save it as "different" parts, so you don't overwrite onto the second the changes you did onto the first, and vice versa. (In Cubase for instance you'll be asked if you want to convert the copy MIDI part into a "Normal Path" so you should say "yes")
Now, you will split the number of voices in twice deleting the seven lower notes in the first MIDI part, and the seven highest notes in the second MIDI part. So the first MIDI part is playing the high seven notes of your performance, and the second MIDI part is playing the other seven lower notes.
When you have split your performance in twice, then you record the seven first notes to a Wav file (audio), using your sequencer. When you have your first seven notes recorded, so you do the same with the other MIDI part. Vuala, you have recorded 14 notes polyphony! AND… the most important thing here is that you have kept your "feeling" because you didn't play twice or more times the same instrument to reach your musical part, and because of this it will sound natural! So you actually have a 14, or 18 or 20 notes modular synth polyphony at home, use it!