[ Ref. "Simple Mechanical Musical Instrument for Museum"

Mark Kinsler is on a brilliant mission, teaching ordinary people
to build musical instruments, and teachers like myself will be
breathlessly awaiting the results.  But I can tell you that if the
plans include cutting and tuning pipe, you're in for a long haul.

Last year I made a 25-note set of hanging chimes out of copper pipe,
and it took at least 20 minutes to file each note to pitch.  Following
a length chart was out of the question, because every pipe from the
store gave different results.  (Yes, I checked the gauge!)  The results
were worth it to me, but you'll have to be a good salesman.

Jim Neher