Mismatch: X:4118 doesn't match requested X:4112
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-91917-tunebook.ps) >>/Users/jc/w/tmp/Tune-91917-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/tunebook.org.uk/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_91917.log 139782 Log file, useful mostly for debugging
Tune-91917-get.log 3056839 Log file, useful mostly for debugging
Tune-91917-tunebook.abc 1067 ABC music file with the extracted tune(s)
Tune-91917-tunebook.ps 43539 PostScript
Tune-91917-tunebook.txt 1067 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.