In the meantime, I suggest that we accept Naiomie's "N" entry and push on to "O"
Edgard Varèse - Yet another non-American American. :grin: Acceptable? I`d been listening to part of his 'Density 21.5' recently. I quite liked it.
Btw, acc- If you had said as a hint for the O composer, 'think of a Canadian beer', I might have gotten it. And I don`t even like beer. :grin: (Not sure that beer brand still exists though.)
John Williams. (Pleeeease, don't shoot!!)