pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-33059-Inisheer-G-32-4.ps) >>/Users/jc/w/tmp/Tune-33059-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/session/PF/Belmont/Inisheer/Inisheer-G-32-4.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_33059.log 454335 Log file, useful mostly for debugging
Tune-33059-Inisheer-G-32-4.abc 736 ABC music file with the extracted tune(s)
Tune-33059-Inisheer-G-32-4.ps 38600 PostScript
Tune-33059-Inisheer-G-32-4.txt 736 Plain-text file with the extracted tune(s)
Tune-33059-get.log 4669 Log file, useful mostly for debugging
These files should be available for 24 hours.