pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7503-10892_Weary_Pund_o_Tow.ps) >>/Users/jc/w/tmp/Tune-7503-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ERM/10892_Weary_Pund_o_Tow.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_7503.log 457010 Log file, useful mostly for debugging
Coll_75038.log 455609 Log file, useful mostly for debugging
Tune-7503-10892_Weary_Pund_o_Tow.abc 723 ABC music file with the extracted tune(s)
Tune-7503-10892_Weary_Pund_o_Tow.ps 37125 PostScript
Tune-7503-10892_Weary_Pund_o_Tow.txt 723 Plain-text file with the extracted tune(s)
Tune-7503-get.log 4644 Log file, useful mostly for debugging
Tune-75038-get.log 5395 Log file, useful mostly for debugging
These files should be available for 24 hours.