pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-51222-Trip_to_the_Lawndry_6.ps) >>/Users/jc/w/tmp/Tune-51222-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JohnWalsh/Trip_to_the_Lawndry_6.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_51222.log 450011 Log file, useful mostly for debugging
Tune-51222-Trip_to_the_Lawndry_6.abc 1343 ABC music file with the extracted tune(s)
Tune-51222-Trip_to_the_Lawndry_6.ps 36067 PostScript
Tune-51222-Trip_to_the_Lawndry_6.txt 1343 Plain-text file with the extracted tune(s)
Tune-51222-get.log 8739 Log file, useful mostly for debugging
These files should be available for 24 hours.