pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-55379-20172_Mans_a_Man.ps) >>/Users/jc/w/tmp/Tune-55379-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ERM/20172_Mans_a_Man.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-55379-20172_Mans_a_Man.abc 530 ABC music file with the extracted tune(s)
Tune-55379-20172_Mans_a_Man.ps 34912 PostScript
Tune-55379-20172_Mans_a_Man.txt 530 Plain-text file with the extracted tune(s)
Tune-55379-get.log 4493 Log file, useful mostly for debugging
These files should be available for 24 hours.