I buy my cloth from Schaff.  Right now it is from Australia and is the
finest I have seen in years.  Player Piano Co. also has it.

My experience with the poly's has not been a happy one.  If you do use
poly cloth then make sure the hinge end of your pneumatic is done with
[linen] cloth.  Poly does not seem to bear the weight of the xylophone
beaters very well and they tend to lean to the side after a few months
use.  On your project remember to use hide glue that comes from a glue
pot and not a bottle.

Schaff is 1-800-74PIANO  or 1-800-747-4266.

Don Teach
Shreveport Music Co
1610 E. Bert Kouns
Shreveport,  LA  71105
dat-smc@juno.com