pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9605-Liverpool_Hornpipe_aka_JMT_011_1.ps) >>/Users/jc/w/tmp/Tune-9605-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Liverpool_Hornpipe_aka_JMT_011_1.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
Form_96052.log 885 Log file, useful mostly for debugging
Form_96058.log 858 Log file, useful mostly for debugging
Tune-9605-Liverpool_Hornpipe_aka_JMT_011_1.abc 455 ABC music file with the extracted tune(s)
Tune-9605-Liverpool_Hornpipe_aka_JMT_011_1.ps 37181 PostScript
Tune-9605-Liverpool_Hornpipe_aka_JMT_011_1.txt 455 Plain-text file with the extracted tune(s)
Tune-9605-get.log 4853 Log file, useful mostly for debugging
These files should be available for 24 hours.