pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6335-tunebook.ps) >>/Users/jc/w/tmp/Tune-6335-get.log 2>&1" returned status 256
http://richardrobinson.tunebook.org.uk/data/tunebook.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
Find_63351.log 1735 Log file, useful mostly for debugging
Form_63352.log 759 Log file, useful mostly for debugging
Form_63359.log 771 Log file, useful mostly for debugging
Tune-6335-get.log 4263 Log file, useful mostly for debugging
Tune-6335-tunebook.abc 422 ABC music file with the extracted tune(s)
Tune-6335-tunebook.ps 35915 PostScript
Tune-6335-tunebook.txt 422 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.