pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9426-2352_the_Braes_of_Marr.ps) >>/Users/jc/w/tmp/Tune-9426-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/2352_the_Braes_of_Marr.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_94261.log 2530041 Log file, useful mostly for debugging
Coll_94262.log 1170885 Log file, useful mostly for debugging
Coll_94264.log 247801 Log file, useful mostly for debugging
Tune-9426-2352_the_Braes_of_Marr.abc 695 ABC music file with the extracted tune(s)
Tune-9426-2352_the_Braes_of_Marr.ps 37345 PostScript
Tune-9426-2352_the_Braes_of_Marr.txt 695 Plain-text file with the extracted tune(s)
Tune-9426-get.log 4686 Log file, useful mostly for debugging
Tune-94260-get.log 6023 Log file, useful mostly for debugging
These files should be available for 24 hours.