pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5163-2342-the_Rocks_of_Cashel.ps) >>/Users/jc/w/tmp/Tune-5163-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/2342-the_Rocks_of_Cashel.abc1.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_51632.log 1747459 Log file, useful mostly for debugging
Form_51638.log 876 Log file, useful mostly for debugging
Tune-5163-2342-the_Rocks_of_Cashel.abc 1394 ABC music file with the extracted tune(s)
Tune-5163-2342-the_Rocks_of_Cashel.ps 42260 PostScript
Tune-5163-2342-the_Rocks_of_Cashel.txt 1394 Plain-text file with the extracted tune(s)
Tune-5163-get.log 10112 Log file, useful mostly for debugging
Tune-51639-get.log 5231 Log file, useful mostly for debugging
These files should be available for 24 hours.