pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-27751-Amaryllis_PLFD1665_165.ps) >>/Users/jc/w/tmp/Tune-27751-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/Amaryllis_PLFD1665_165.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-27751-Amaryllis_PLFD1665_165.abc 323 ABC music file with the extracted tune(s)
Tune-27751-Amaryllis_PLFD1665_165.ps 34062 PostScript
Tune-27751-Amaryllis_PLFD1665_165.txt 323 Plain-text file with the extracted tune(s)
Tune-27751-get.log 9010 Log file, useful mostly for debugging
These files should be available for 24 hours.