pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5514-Minstrel_Boy-D-16-4.ps) >>/Users/jc/w/tmp/Tune-5514-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/program/march/Minstrel_Boy-D-16-4.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_55149.log 259149 Log file, useful mostly for debugging
Tune-5514-Minstrel_Boy-D-16-4.abc 265 ABC music file with the extracted tune(s)
Tune-5514-Minstrel_Boy-D-16-4.ps 32729 PostScript
Tune-5514-Minstrel_Boy-D-16-4.txt 265 Plain-text file with the extracted tune(s)
Tune-5514-get.log 4456 Log file, useful mostly for debugging
Tune-55140-get.log 3674 Log file, useful mostly for debugging
Tune-55142-get.log 1340 Log file, useful mostly for debugging
Tune-55143-get.log 5272 Log file, useful mostly for debugging
Tune-55145-Hornpipe.abc 224 ABC music file with the extracted tune(s)
Tune-55145-Hornpipe.txt 224 Plain-text file with the extracted tune(s)
Tune-55145-get.log 2935 Log file, useful mostly for debugging
Tune-55149-Westrop120.abc 129 ABC music file with the extracted tune(s)
Tune-55149-Westrop120.txt 129 Plain-text file with the extracted tune(s)
Tune-55149-get.log 29177 Log file, useful mostly for debugging
These files should be available for 24 hours.