pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3338-20711_.ps) >>/Users/jc/w/tmp/Tune-3338-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ERM/20711_.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-3338-20711_.abc 50 ABC music file with the extracted tune(s)
Tune-3338-20711_.ps 6 PostScript
Tune-3338-20711_.txt 50 Plain-text file with the extracted tune(s)
Tune-3338-get.log 3794 Log file, useful mostly for debugging
Tune-33385-078_Dancing_In_the_Sun.abc 1053 ABC music file with the extracted tune(s)
Tune-33385-078_Dancing_In_the_Sun.pdf 15363 Portable Data Format
Tune-33385-078_Dancing_In_the_Sun.ps 35128 PostScript
Tune-33385-078_Dancing_In_the_Sun.txt 1053 Plain-text file with the extracted tune(s)
Tune-33385-get.log 5779 Log file, useful mostly for debugging
These files should be available for 24 hours.