pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-30686-20301_Burns_Festival_March_6th_August_1844.ps) >>/Users/jc/w/tmp/Tune-30686-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Hamilton/HUTB2/20301_Burns_Festival_March_6th_August_1844.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-30686-20301_Burns_Festival_March_6th_August_1844.abc 850 ABC music file with the extracted tune(s)
Tune-30686-20301_Burns_Festival_March_6th_August_1844.ps 38989 PostScript
Tune-30686-20301_Burns_Festival_March_6th_August_1844.txt 850 Plain-text file with the extracted tune(s)
Tune-30686-get.log 5154 Log file, useful mostly for debugging
These files should be available for 24 hours.