pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-951-tunebook.ps) >>/Users/jc/w/tmp/Tune-951-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_95108.log 142202 Log file, useful mostly for debugging
Coll_95129.log 261969 Log file, useful mostly for debugging
Coll_9517.log 143412 Log file, useful mostly for debugging
Coll_95181.log 149462 Log file, useful mostly for debugging
Coll_95183.log 150672 Log file, useful mostly for debugging
Coll_95194.log 253509 Log file, useful mostly for debugging
Form_9516.log 836 Log file, useful mostly for debugging
Form_95162.log 869 Log file, useful mostly for debugging
Form_95173.log 820 Log file, useful mostly for debugging
Form_95175.log 858 Log file, useful mostly for debugging
Form_95179.log 860 Log file, useful mostly for debugging
Tune-951-get.log 4271 Log file, useful mostly for debugging
Tune-951-tunebook.abc 590 ABC music file with the extracted tune(s)
Tune-951-tunebook.ps 34302 PostScript
Tune-951-tunebook.txt 590 Plain-text file with the extracted tune(s)
Tune-95104-Gagnsfora_D_2V.abc 753 ABC music file with the extracted tune(s)
Tune-95104-Gagnsfora_D_2V.txt 753 Plain-text file with the extracted tune(s)
Tune-95104-get.log 3128 Log file, useful mostly for debugging
Tune-95107-get.log 3189 Log file, useful mostly for debugging
Tune-95111-Chansonspour_Elisabeth-001.svg 16858 Scalable Vector Graphics format
Tune-95111-Chansonspour_Elisabeth.abc 594 ABC music file with the extracted tune(s)
Tune-95111-Chansonspour_Elisabeth.txt 594 Plain-text file with the extracted tune(s)
Tune-95111-get.log 10523 Log file, useful mostly for debugging
Tune-95112-Stage_Hornpipe_PM-Stage_Hornpipe_PM-G-32-4.abc 627 ABC music file with the extracted tune(s)
Tune-95112-Stage_Hornpipe_PM-Stage_Hornpipe_PM-G-32-4.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-95112-Stage_Hornpipe_PM-Stage_Hornpipe_PM-G-32-4.ps 37802 PostScript
Tune-95112-Stage_Hornpipe_PM-Stage_Hornpipe_PM-G-32-4.txt 627 Plain-text file with the extracted tune(s)
Tune-95112-get.log 6479 Log file, useful mostly for debugging
Tune-95125-get.log 5795 Log file, useful mostly for debugging
Tune-95134-152-KittyColeraine.abc 635 ABC music file with the extracted tune(s)
Tune-95134-152-KittyColeraine.txt 635 Plain-text file with the extracted tune(s)
Tune-95134-get.log 3498 Log file, useful mostly for debugging
Tune-95135-get.log 3500 Log file, useful mostly for debugging
Tune-95147-get.log 2447 Log file, useful mostly for debugging
Tune-95159-get.log 4276 Log file, useful mostly for debugging
Tune-95168-get.log 2856 Log file, useful mostly for debugging
Tune-95168-jigs.abc 297 ABC music file with the extracted tune(s)
Tune-95168-jigs.txt 297 Plain-text file with the extracted tune(s)
Tune-95194-get.log 5304 Log file, useful mostly for debugging
These files should be available for 24 hours.