pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4617-MrsStewartSintonsR.ps) >>/Users/jc/w/tmp/Tune-4617-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/MrsStewartSintonsR.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
Tune-4617-MrsStewartSintonsR.abc 495 ABC music file with the extracted tune(s)
Tune-4617-MrsStewartSintonsR.ps 35444 PostScript
Tune-4617-MrsStewartSintonsR.txt 495 Plain-text file with the extracted tune(s)
Tune-4617-get.log 7903 Log file, useful mostly for debugging
Tune-46170-get.log 3198 Log file, useful mostly for debugging
Tune-46173-get.log 5940 Log file, useful mostly for debugging
Tune-46176-get.log 4122 Log file, useful mostly for debugging
Tune-46177-get.log 3812 Log file, useful mostly for debugging
These files should be available for 24 hours.