pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-142-WoodOfFyvie.ps) >>/Users/jc/w/tmp/Tune-142-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/WoodOfFyvie.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_14229.log 141067 Log file, useful mostly for debugging
Coll_14269.log 282007 Log file, useful mostly for debugging
Form_1420.log 914 Log file, useful mostly for debugging
Form_14243.log 894 Log file, useful mostly for debugging
Form_14260.log 933 Log file, useful mostly for debugging
Form_14270.log 923 Log file, useful mostly for debugging
Form_14271.log 894 Log file, useful mostly for debugging
Form_14280.log 941 Log file, useful mostly for debugging
Tune-142-WoodOfFyvie.abc 493 ABC music file with the extracted tune(s)
Tune-142-WoodOfFyvie.ps 34584 PostScript
Tune-142-WoodOfFyvie.txt 493 Plain-text file with the extracted tune(s)
Tune-142-get.log 5719 Log file, useful mostly for debugging
Tune-14213-get.log 3672 Log file, useful mostly for debugging
Tune-14221-get.log 3677 Log file, useful mostly for debugging
Tune-14249-get.log 4666 Log file, useful mostly for debugging
Tune-14295-get.log 4970 Log file, useful mostly for debugging
These files should be available for 24 hours.