pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8612-Cressons-Dm-24-3.ps) >>/Users/jc/w/tmp/Tune-8612-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/England/reel/Cressons-Dm-24-3.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_86120.log 866 Log file, useful mostly for debugging
Tune-8612-Cressons-Dm-24-3.abc 525 ABC music file with the extracted tune(s)
Tune-8612-Cressons-Dm-24-3.ps 35493 PostScript
Tune-8612-Cressons-Dm-24-3.txt 525 Plain-text file with the extracted tune(s)
Tune-8612-get.log 8888 Log file, useful mostly for debugging
Tune-86122-get.log 3023 Log file, useful mostly for debugging
Tune-86124-get.log 6708 Log file, useful mostly for debugging
Tune-86129-get.log 2316 Log file, useful mostly for debugging
These files should be available for 24 hours.