Next Pfield Macros Scot has a macro text substitution facility which operates only on the pfield specification text within brackets. It allows control values to be specified symbolically rather than numerically.
Macro definitions appear inside brackets in the orchestra section.
A single bracketed list of macro definitions preceding the first instrument declaration defines macros which apply to all instruments. An additional bracketed list of definitions may follow each instrument to specify macros that apply to that particular instrument. As can be seen from this example, a macro definition consists of the macro name, which is a string of alphabetic characters, followed by an equal sign, followed by the macro value. As usual, spaces, tabs, and newlines may be used freely. The macro value may contain arbitrary characters, and may be quoted if spacing characters need to be included.