pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7488-Kilkenny_Hornpipe.ps) >>/Users/jc/w/tmp/Tune-7488-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kilkenny_Hornpipe.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_7488.log 374250 Log file, useful mostly for debugging
Coll_74881.log 230 Log file, useful mostly for debugging
Coll_74883.log 144740 Log file, useful mostly for debugging
Tune-7488-Kilkenny_Hornpipe.abc 659 ABC music file with the extracted tune(s)
Tune-7488-Kilkenny_Hornpipe.ps 39412 PostScript
Tune-7488-Kilkenny_Hornpipe.txt 659 Plain-text file with the extracted tune(s)
Tune-7488-get.log 4622 Log file, useful mostly for debugging
Tune-74885-get.log 3838 Log file, useful mostly for debugging
Tune-74886-get.log 1896 Log file, useful mostly for debugging
Tune-74888-get.log 3867 Log file, useful mostly for debugging
These files should be available for 24 hours.