pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6692-Tripping_to_the_Well.ps) >>/Users/jc/w/tmp/Tune-6692-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CuzTeahan/SliabhLuachroOnParade/Tripping_to_the_Well.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_66921.log 264661 Log file, useful mostly for debugging
Coll_66924.log 264661 Log file, useful mostly for debugging
Coll_66925.log 264661 Log file, useful mostly for debugging
Coll_66926.log 124098 Log file, useful mostly for debugging
Form_6692.log 1686 Log file, useful mostly for debugging
Form_66920.log 972 Log file, useful mostly for debugging
Form_66923.log 836 Log file, useful mostly for debugging
Form_66926.log 828 Log file, useful mostly for debugging
Form_66927.log 1723 Log file, useful mostly for debugging
Form_66928.log 1667 Log file, useful mostly for debugging
Form_66929.log 974 Log file, useful mostly for debugging
Tune-6692-Tripping_to_the_Well.abc 427 ABC music file with the extracted tune(s)
Tune-6692-Tripping_to_the_Well.ps 34722 PostScript
Tune-6692-Tripping_to_the_Well.txt 427 Plain-text file with the extracted tune(s)
Tune-6692-get.log 4996 Log file, useful mostly for debugging
Tune-66922-get.log 11378 Log file, useful mostly for debugging
Tune-66923-get.log 4859 Log file, useful mostly for debugging
Tune-66924-get.log 5460 Log file, useful mostly for debugging
Tune-66927-017_Miss_Chalmers_Gigg.abc 598 ABC music file with the extracted tune(s)
Tune-66927-017_Miss_Chalmers_Gigg.pdf 13497 Portable Data Format
Tune-66927-017_Miss_Chalmers_Gigg.ps 34420 PostScript
Tune-66927-017_Miss_Chalmers_Gigg.txt 598 Plain-text file with the extracted tune(s)
Tune-66927-get.log 5690 Log file, useful mostly for debugging
These files should be available for 24 hours.