Sorry I’m always asking for too much, and the dedication too little.
JUCE class library to the lack of comprehensive tutorials and user guide, however, JUCE-DEMO provided a wealth of rich and useful information. I heard that Jules going to rewrite JUCE-DEMO, take the liberty of request: could add some more Audio and MIDI examples? These are important feature and the characteristic of JUCE, should be more examples.
Anyway, thanks to Jules of industrious and great.