pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9851-CPCvol2-abc2.ps) >>/Users/jc/w/tmp/Tune-9851-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JamesOswald/CPC/CPCvol2-abc2.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_98512.log 68234 Log file, useful mostly for debugging
Form_98511.log 787 Log file, useful mostly for debugging
Form_98513.log 756 Log file, useful mostly for debugging
Tune-9851-CPCvol2-abc2.abc 427 ABC music file with the extracted tune(s)
Tune-9851-CPCvol2-abc2.ps 35793 PostScript
Tune-9851-CPCvol2-abc2.txt 427 Plain-text file with the extracted tune(s)
Tune-9851-get.log 4334 Log file, useful mostly for debugging
Tune-98511-get.log 3240 Log file, useful mostly for debugging
Tune-98515-get.log 10247 Log file, useful mostly for debugging
Tune-98515-hnj4.abc 455 ABC music file with the extracted tune(s)
Tune-98515-hnj4.txt 455 Plain-text file with the extracted tune(s)
Tune-98516-get.log 9469 Log file, useful mostly for debugging
Tune-98518-get.log 3041 Log file, useful mostly for debugging
These files should be available for 24 hours.