pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-99635-10853_Old_French_Melody.ps) >>/Users/jc/w/tmp/Tune-99635-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Hamilton/HUTB1/10853_Old_French_Melody.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-99635-10853_Old_French_Melody.abc 746 ABC music file with the extracted tune(s)
Tune-99635-10853_Old_French_Melody.ps 34538 PostScript
Tune-99635-10853_Old_French_Melody.txt 746 Plain-text file with the extracted tune(s)
Tune-99635-get.log 5257 Log file, useful mostly for debugging
These files should be available for 24 hours.