X:5588 not found in http://richardrobinson.tunebook.org.uk/static/tunebook.abc
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1326-tunebook.ps) >>/Users/jc/w/tmp/Tune-1326-get.log 2>&1" returned status 256
http://richardrobinson.tunebook.org.uk/static/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_13264.log 136757 Log file, useful mostly for debugging
Find_13263.log 1395 Log file, useful mostly for debugging
Tune-1326-get.log 4324 Log file, useful mostly for debugging
Tune-1326-tunebook.abc 0 ABC music file with the extracted tune(s)
Tune-1326-tunebook.ps 6 PostScript
Tune-1326-tunebook.txt 0 Plain-text file with the extracted tune(s)
Tune-13260-get.log 5250 Log file, useful mostly for debugging
Tune-13269-get.log 4222 Log file, useful mostly for debugging
These files should be available for 24 hours.