pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1610-How_Are_You_Mary_Geaney.ps) >>/Users/jc/w/tmp/Tune-1610-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CuzTeahan/SliabhLuachroOnParade/How_Are_You_Mary_Geaney.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_16102.log 286209 Log file, useful mostly for debugging
Form_16108.log 866 Log file, useful mostly for debugging
Tune-1610-How_Are_You_Mary_Geaney.abc 512 ABC music file with the extracted tune(s)
Tune-1610-How_Are_You_Mary_Geaney.ps 36915 PostScript
Tune-1610-How_Are_You_Mary_Geaney.txt 512 Plain-text file with the extracted tune(s)
Tune-1610-get.log 4923 Log file, useful mostly for debugging
Tune-16104-get.log 5909 Log file, useful mostly for debugging
Tune-16105-get.log 3474 Log file, useful mostly for debugging
These files should be available for 24 hours.