pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8167-131_Morpeth_Rant.ps) >>/Users/jc/w/tmp/Tune-8167-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/WilliamCampbell/10thBook/131_Morpeth_Rant.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_8167.log 292761 Log file, useful mostly for debugging
Coll_81672.log 271685 Log file, useful mostly for debugging
Coll_81673.log 292760 Log file, useful mostly for debugging
Coll_81676.log 570065 Log file, useful mostly for debugging
Coll_81677.log 291356 Log file, useful mostly for debugging
Tune-8167-131_Morpeth_Rant.abc 1280 ABC music file with the extracted tune(s)
Tune-8167-131_Morpeth_Rant.ps 37647 PostScript
Tune-8167-131_Morpeth_Rant.txt 1280 Plain-text file with the extracted tune(s)
Tune-8167-get.log 4654 Log file, useful mostly for debugging
Tune-81670-24CountryDances_1796_Preston.abc 177 ABC music file with the extracted tune(s)
Tune-81670-24CountryDances_1796_Preston.txt 177 Plain-text file with the extracted tune(s)
Tune-81670-get.log 3584 Log file, useful mostly for debugging
Tune-81672-get.log 3492 Log file, useful mostly for debugging
Tune-81679-get.log 5249 Log file, useful mostly for debugging
These files should be available for 24 hours.