Well I have to say, Mikey that he's been around for all of my life (since I am not yet 82). But I can genuinely say that until today I had never, ever heard of him. I caught news of his death on the eight o'clock news and they suggested that some of his work was not so well received when first published. They then played a clip of one of his numbers and I immediately understood why that was so. Handy to have available if you have to arrange a funeral and the deceased had not made his choice of music for his departure known, but that's the best I can say. So unless I had heard the news this morning, I too would have said "Leonard? Leonard who?"