pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-47554-Hymns.ps) >>/Users/jc/w/tmp/Tune-47554-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/SudburyAncients/Hymns.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
Coll_47554.log 0 Log file, useful mostly for debugging
Form_47554.log 873 Log file, useful mostly for debugging
Tune-47554-Hymns.abc 343 ABC music file with the extracted tune(s)
Tune-47554-Hymns.ps 32643 PostScript
Tune-47554-Hymns.txt 343 Plain-text file with the extracted tune(s)
Tune-47554-get.log 4265 Log file, useful mostly for debugging
These files should be available for 24 hours.