pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7794-2bar-alphabetical.ps) >>/Users/jc/w/tmp/Tune-7794-get.log 2>&1" returned status 256
http://wellington.session.nz/tunebooks/2bar-alphabetical.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_77944.log 270949 Log file, useful mostly for debugging
Coll_77947.log 70664 Log file, useful mostly for debugging
Form_77949.log 753 Log file, useful mostly for debugging
Tune-7794-2bar-alphabetical.abc 92 ABC music file with the extracted tune(s)
Tune-7794-2bar-alphabetical.ps 31586 PostScript
Tune-7794-2bar-alphabetical.txt 92 Plain-text file with the extracted tune(s)
Tune-7794-get.log 8344 Log file, useful mostly for debugging
Tune-77942-get.log 3077 Log file, useful mostly for debugging
Tune-77944-get.log 3853 Log file, useful mostly for debugging
Tune-77945-get.log 5486 Log file, useful mostly for debugging
Tune-77948-OldTipperary_1.abc 586 ABC music file with the extracted tune(s)
Tune-77948-OldTipperary_1.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-77948-OldTipperary_1.ps 35045 PostScript
Tune-77948-OldTipperary_1.txt 586 Plain-text file with the extracted tune(s)
Tune-77948-get.log 5885 Log file, useful mostly for debugging
Tune-77949-get.log 3076 Log file, useful mostly for debugging
These files should be available for 24 hours.