An instrument like this:

  instr 1
  inh = p4
  endin

fails as follows:

  10 lines read
	  instr   1
  error:  illegal character =, line 8:
  inh = p4
      ^
  error:  expression syntax, line 8:
  inh = p4
   insufficient terms: =p4
  error:  too many input args, line 8:
  inh = p4
  error:  illegal no of output args, line 8:
  inh = p4
  4 syntax errors in orchestra.  compilation invalid

As far as I can tell this bug is specific to the word "inh".  If I
change the 'n' or the 'h' character, or add characters, then it works.

Cheers, 

Jeremy Henty