pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3062-2123.ps) >>/Users/jc/w/tmp/Tune-3062-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/2123=Hes_aye_Kissing_me.abc2.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_30621.log 306813 Log file, useful mostly for debugging
Coll_30623.log 1482796 Log file, useful mostly for debugging
Coll_30625.log 1215845 Log file, useful mostly for debugging
Coll_30628.log 1147000 Log file, useful mostly for debugging
Coll_30629.log 1326840 Log file, useful mostly for debugging
Form_30623.log 882 Log file, useful mostly for debugging
Form_30629.log 882 Log file, useful mostly for debugging
Tune-3062-2123.abc 1070 ABC music file with the extracted tune(s)
Tune-3062-2123.ps 40624 PostScript
Tune-3062-2123.txt 1070 Plain-text file with the extracted tune(s)
Tune-3062-get.log 103254 Log file, useful mostly for debugging
Tune-30620-get.log 6086 Log file, useful mostly for debugging
Tune-30624-get.log 3926 Log file, useful mostly for debugging
These files should be available for 24 hours.