Music of an era can become forgotten, while music of another remembered. When it is rewritten, from a time forgotten, who, is who? And what does it matter, after all, when names can also become eventually forgotten. What is current today is who is preserving it today. I never cared for the music my parents listened to; but ironically, my kids download, and borrow the music I grew up with. My ten year old today, was whistling "Jump" by Van Halen; I pretended not to notice, I wouldn't want to ruin it! I'd rather they have their own identity to it. Never-mind, "it was a song dad listened to". I haven't noticed any of my children listening to Perry Como, just yet. But the research matters just as how far does one on this sight care to per sue music, compared to the next trumpet master poster. As far as I understand it, some of us want to become physics engineers.