pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21226-NewsFromTripoly_PLFD1702_492.ps) >>/Users/jc/w/tmp/Tune-21226-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/NewsFromTripoly_PLFD1702_492.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_21226.log 468209 Log file, useful mostly for debugging
Tune-21226-NewsFromTripoly_PLFD1702_492.abc 462 ABC music file with the extracted tune(s)
Tune-21226-NewsFromTripoly_PLFD1702_492.ps 35406 PostScript
Tune-21226-NewsFromTripoly_PLFD1702_492.txt 462 Plain-text file with the extracted tune(s)
Tune-21226-get.log 4890 Log file, useful mostly for debugging
These files should be available for 24 hours.