pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1003-3119_Lady_Caroline_Montague.ps) >>/Users/jc/w/tmp/Tune-1003-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM3/3119_Lady_Caroline_Montague.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
Form_10036.log 849 Log file, useful mostly for debugging
Form_10037.log 847 Log file, useful mostly for debugging
Form_10039.log 847 Log file, useful mostly for debugging
Tune-1003-3119_Lady_Caroline_Montague.abc 605 ABC music file with the extracted tune(s)
Tune-1003-3119_Lady_Caroline_Montague.ps 40195 PostScript
Tune-1003-3119_Lady_Caroline_Montague.txt 605 Plain-text file with the extracted tune(s)
Tune-1003-get.log 4841 Log file, useful mostly for debugging
Tune-10034-get.log 5695 Log file, useful mostly for debugging
Tune-10039-get.log 5059 Log file, useful mostly for debugging
These files should be available for 24 hours.