With Karplus Strong Synthesis plugged string, string but also flutes can be created. They have a special acoustical quality and do not really sound like coming from an electronic music instrument. Here are my first tries with the new part of the sound engine. One have not to switch from the subtractive engine to this new algorithm - we just added the Karplus Strong algorithm as an additional filter into the engine...
http://www.joergschaaf.de/Karplus_Strong.mp3