“PMX” stands for “Parameter MatriX”. PMX files are ASCII versions of binary SCORE data. Each line in a PMX file represents a SCORE item, such as note, rest, barline, clef, key signature, etc. Each line contains a list of floating-point values describing an item. Text items are an exception: their lines start with “t” rather than “16”, and the text parameter immediate follows the numeric parameter line. Code 15 items also have a second line of data which contains the name of the Encapsulated PostScript file to include. PMX files can be read into the SCORE editor with the RE command. The RE command also reads in macro files, so PMX data can be mixed with SCORE commands.
The following notation example shows the corresponding PMX data underneath it. Move your mouse over the notation or the PMX data to highlight the corresponding notation/PMX values. For this example, the PMX data is time sorted (sorted left to right spatially, interleaving all staves).
Ravel String Quartet in F major, IV, mm. 105–108.