pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9473-tunebook.ps) >>/Users/jc/w/tmp/Tune-9473-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
Coll_94732.log 298611 Log file, useful mostly for debugging
Form_94732.log 753 Log file, useful mostly for debugging
Tune-9473-get.log 4199 Log file, useful mostly for debugging
Tune-9473-tunebook.abc 633 ABC music file with the extracted tune(s)
Tune-9473-tunebook.ps 36178 PostScript
Tune-9473-tunebook.txt 633 Plain-text file with the extracted tune(s)
Tune-94730-get.log 3157 Log file, useful mostly for debugging
Tune-94734-get.log 1407 Log file, useful mostly for debugging
Tune-94735-Cumbernauld_House_1.abc 460 ABC music file with the extracted tune(s)
Tune-94735-Cumbernauld_House_1.ps 38383 PostScript
Tune-94735-Cumbernauld_House_1.txt 460 Plain-text file with the extracted tune(s)
Tune-94735-get.log 4534 Log file, useful mostly for debugging
Tune-94736-get.log 6506 Log file, useful mostly for debugging
Tune-94737-get.log 4844 Log file, useful mostly for debugging
Tune-94738-get.log 4235 Log file, useful mostly for debugging
These files should be available for 24 hours.