pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5530-30571_Manchester_Hornpipe.ps) >>/Users/jc/w/tmp/Tune-5530-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30571_Manchester_Hornpipe.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-5530-30571_Manchester_Hornpipe.abc 634 ABC music file with the extracted tune(s)
Tune-5530-30571_Manchester_Hornpipe.ps 35897 PostScript
Tune-5530-30571_Manchester_Hornpipe.txt 634 Plain-text file with the extracted tune(s)
Tune-5530-get.log 4835 Log file, useful mostly for debugging
Tune-55302-get.log 4275 Log file, useful mostly for debugging
Tune-55305-get.log 3874 Log file, useful mostly for debugging
These files should be available for 24 hours.