I have the Nelson Wiggen Style 3 PianOGrand with xylophone.  I've
been playing it sporadically since I got it in August of this year.
It's coincidental that mine also plays all the time with the xylophone,
yet this last time I re-wound the roll and played (last week), the
xylophone stopped playing.  The xylophone damper continues to go up and
down, but the xylophone is not playing.  Is there a switch or valve
that cuts the xylophone on and off?

Britt Abbott