Patch from Erik Hofman:

Patch from Erik Hofman:

I've updated the instrument modulator code to allow tricks like the one
described by Andy. It is now possible to define <min>, <max> and
<modulator> in one layer and if <min> and/or <max> ore within the range
of the <modulator> tag, their value will be honoured.

So, if you define

  <layer>
   <min>0</min>
   <max>50</max>
   <modulator>100</modulator>
  </layer>

The value will stay at 50, until the modulator forces it back to 0.