pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7468-11141_Cary_Owen.ps) >>/Users/jc/w/tmp/Tune-7468-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ERM/11141_Cary_Owen.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_74680.log 454211 Log file, useful mostly for debugging
Tune-7468-11141_Cary_Owen.abc 558 ABC music file with the extracted tune(s)
Tune-7468-11141_Cary_Owen.ps 34993 PostScript
Tune-7468-11141_Cary_Owen.txt 558 Plain-text file with the extracted tune(s)
Tune-7468-get.log 4440 Log file, useful mostly for debugging
These files should be available for 24 hours.