pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8084-VCB4.ps) >>/Users/jc/w/tmp/Tune-8084-get.log 2>&1" returned status 256
http://jjaquier.free.fr/midifiles/abc/abc/VCB4.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_80840.log 264789 Log file, useful mostly for debugging
Find_8084.log 1588 Log file, useful mostly for debugging
Find_80844.log 3339 Log file, useful mostly for debugging
Find_80848.log 1741 Log file, useful mostly for debugging
Form_80842.log 870 Log file, useful mostly for debugging
Tune-8084-VCB4.abc 812 ABC music file with the extracted tune(s)
Tune-8084-VCB4.ps 44790 PostScript
Tune-8084-VCB4.txt 812 Plain-text file with the extracted tune(s)
Tune-8084-get.log 4198 Log file, useful mostly for debugging
Tune-80842-get.log 0 Log file, useful mostly for debugging
Tune-80843-get.log 4423 Log file, useful mostly for debugging
Tune-80845-get.log 3820 Log file, useful mostly for debugging
Tune-80847-get.log 0 Log file, useful mostly for debugging
These files should be available for 24 hours.