William Hyder 
Last updated: 26.02.18
All that can presently (May 2013) be gleaned about by internet searching is that William Hyder is the one-off composer of Polyphonic Rag (1979).
Surfers are welcome to contribute information about this composer.
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Ragtime Music CDs:
cd15.gif Sue Keller on "Ol' Muddy" CD(s) & MP3 Album(s) flag15us.gif flag15de.gif
This list is arranged in chronological order and contains 1 work by William Hyder. It does not claim to be complete and represents only the number of items located.

Polyphonic Rag (1979)