pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1094-1123_Cadgers_of_the_Canongate.ps) >>/Users/jc/w/tmp/Tune-1094-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/1123_Cadgers_of_the_Canongate.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_10941.log 247801 Log file, useful mostly for debugging
Coll_10942.log 253423 Log file, useful mostly for debugging
Coll_10948.log 1352131 Log file, useful mostly for debugging
Coll_10949.log 1099230 Log file, useful mostly for debugging
Form_10940.log 888 Log file, useful mostly for debugging
Form_10944.log 881 Log file, useful mostly for debugging
Tune-1094-1123_Cadgers_of_the_Canongate.abc 828 ABC music file with the extracted tune(s)
Tune-1094-1123_Cadgers_of_the_Canongate.ps 38416 PostScript
Tune-1094-1123_Cadgers_of_the_Canongate.txt 828 Plain-text file with the extracted tune(s)
Tune-1094-get.log 4880 Log file, useful mostly for debugging
Tune-10946-get.log 4043 Log file, useful mostly for debugging
These files should be available for 24 hours.