Thank you all for the forthright comments.
If there is such a thing called 'audio-deaf', I've got it then. Cos I've listened to it so many times that I just can't put my finger on what is wrong.
Needed a few discerning listeners to take it apart!!
And now that you mentioned it, the tone does sound 'synth'. And mozzie-like. Well, the ideas are there but the execution is sloppy to say the least.
Anyway, I'm gonna have to sleep over this and decide what to do.
Most probably I'll start everything from scratch, might try a different s/ware, or a different approach ... sigh

The rantings of a over-the-hill ol' ....
fathergoosed2000.blogspot.com/