pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4674-3363_Mr_Alexander_Cunninghams.ps) >>/Users/jc/w/tmp/Tune-4674-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CSR/3363_Mr_Alexander_Cunninghams.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_46741.log 509131 Log file, useful mostly for debugging
Coll_46742.log 268876 Log file, useful mostly for debugging
Coll_46743.log 261851 Log file, useful mostly for debugging
Coll_46745.log 264661 Log file, useful mostly for debugging
Coll_46749.log 261851 Log file, useful mostly for debugging
Form_46740.log 996 Log file, useful mostly for debugging
Tune-4674-3363_Mr_Alexander_Cunninghams.abc 1003 ABC music file with the extracted tune(s)
Tune-4674-3363_Mr_Alexander_Cunninghams.ps 38826 PostScript
Tune-4674-3363_Mr_Alexander_Cunninghams.txt 1003 Plain-text file with the extracted tune(s)
Tune-4674-get.log 9158 Log file, useful mostly for debugging
Tune-46742-get.log 4685 Log file, useful mostly for debugging
Tune-46747-get.log 2883 Log file, useful mostly for debugging
Tune-46748-get.log 4369 Log file, useful mostly for debugging
These files should be available for 24 hours.