pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20398-ArthursSeatHornpipeR.ps) >>/Users/jc/w/tmp/Tune-20398-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/terrytraub.org/ArthursSeatHornpipeR.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
Find_20398.log 1615 Log file, useful mostly for debugging
Tune-20398-ArthursSeatHornpipeR.abc 615 ABC music file with the extracted tune(s)
Tune-20398-ArthursSeatHornpipeR.ps 36351 PostScript
Tune-20398-ArthursSeatHornpipeR.txt 615 Plain-text file with the extracted tune(s)
Tune-20398-get.log 5843 Log file, useful mostly for debugging
These files should be available for 24 hours.