pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-39572-Long_Way_to_Tipperary-G-24-w.ps) >>/Users/jc/w/tmp/Tune-39572-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/StPatsDay/song/Long_Way_to_Tipperary-G-24-w.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
Tune-39572-Long_Way_to_Tipperary-G-24-w.abc 1699 ABC music file with the extracted tune(s)
Tune-39572-Long_Way_to_Tipperary-G-24-w.ps 43699 PostScript
Tune-39572-Long_Way_to_Tipperary-G-24-w.txt 1699 Plain-text file with the extracted tune(s)
Tune-39572-get.log 4716 Log file, useful mostly for debugging
These files should be available for 24 hours.