pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-93646-HalfHannikin_PLFD1651_034.ps) >>/Users/jc/w/tmp/Tune-93646-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/HalfHannikin_PLFD1651_034.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-93646-HalfHannikin_PLFD1651_034.abc 365 ABC music file with the extracted tune(s)
Tune-93646-HalfHannikin_PLFD1651_034.ps 33369 PostScript
Tune-93646-HalfHannikin_PLFD1651_034.txt 365 Plain-text file with the extracted tune(s)
Tune-93646-get.log 4801 Log file, useful mostly for debugging
These files should be available for 24 hours.