Added some comment text to Synth.h
Added some comment text to Synth.h

UIKit0/Tonic,TheWindInTheWillows/Tonic,eriser/Tonic,TonicAudio/Tonic,mcanthony/Tonic,kaikai03/Tonic,diviaki/Tonic,TonicAudio/Tonic,kaikai03/Tonic,TheWindInTheWillows/Tonic,mcanthony/Tonic,UIKit0/Tonic,eriser/Tonic