Since adp_TransposeChords.php is old and transposes only chords entered as text items, I created this tool to transpose the chords entered as ChordPlay objects.
Please remember that normally the ChordPlay objects are automatically transposed when you transpose the staff, so no special operations are needed.
With this tool you can transpose only the ChordPlay objects as requested here (https://forum.noteworthycomposer.com/?topic=9092.msg74598#msg74598).
You can specify on the command line the number of semitones by which to transpose che chords.
If no parameter is specified, the number of semitones will be asked each time the tool is run.
N.B. this tool explicitly ignores the autor of the ChordPlay plugin, e.g. .nw, .lp, .fl, ... and handles all its possibile "flavours".