pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6461-Aird-v4.ps) >>/Users/jc/w/tmp/Tune-6461-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Aird/Aird-v4.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_64613.log 256329 Log file, useful mostly for debugging
Form_64617.log 840 Log file, useful mostly for debugging
Form_64618.log 815 Log file, useful mostly for debugging
Tune-6461-Aird-v4.abc 417 ABC music file with the extracted tune(s)
Tune-6461-Aird-v4.ps 35968 PostScript
Tune-6461-Aird-v4.txt 417 Plain-text file with the extracted tune(s)
Tune-6461-get.log 8479 Log file, useful mostly for debugging
Tune-64613-get.log 1403 Log file, useful mostly for debugging
Tune-64619-Ryan-Cole.abc 567 ABC music file with the extracted tune(s)
Tune-64619-Ryan-Cole.txt 567 Plain-text file with the extracted tune(s)
Tune-64619-get.log 3052 Log file, useful mostly for debugging
These files should be available for 24 hours.