pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-58831-771_Galliard.ps) >>/Users/jc/w/tmp/Tune-58831-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1782/Thompson/771_Galliard.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_58831.log 281520 Log file, useful mostly for debugging
Tune-58831-771_Galliard.abc 919 ABC music file with the extracted tune(s)
Tune-58831-771_Galliard.ps 34698 PostScript
Tune-58831-771_Galliard.txt 919 Plain-text file with the extracted tune(s)
Tune-58831-get.log 4522 Log file, useful mostly for debugging
These files should be available for 24 hours.