pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2411-OpenHymnal2012.ps) >>/Users/jc/w/tmp/Tune-2411-get.log 2>&1" returned status 256
http://openhymnal.org/OpenHymnal2012.10.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-2411-OpenHymnal2012.abc 4120 ABC music file with the extracted tune(s)
Tune-2411-OpenHymnal2012.ps 61358 PostScript
Tune-2411-OpenHymnal2012.txt 4120 Plain-text file with the extracted tune(s)
Tune-2411-get.log 83067 Log file, useful mostly for debugging
These files should be available for 24 hours.