pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5577-4173-Fingalls_Lamentations.ps) >>/Users/jc/w/tmp/Tune-5577-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CSR/4173-Fingalls_Lamentations.abc1.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_55770.log 680715 Log file, useful mostly for debugging
Coll_55771.log 277308 Log file, useful mostly for debugging
Coll_55772.log 270281 Log file, useful mostly for debugging
Coll_55774.log 268876 Log file, useful mostly for debugging
Coll_55775.log 256231 Log file, useful mostly for debugging
Coll_55776.log 263256 Log file, useful mostly for debugging
Form_55777.log 1958 Log file, useful mostly for debugging
Tune-5577-4173-Fingalls_Lamentations.abc 1090 ABC music file with the extracted tune(s)
Tune-5577-4173-Fingalls_Lamentations.ps 40301 PostScript
Tune-5577-4173-Fingalls_Lamentations.txt 1090 Plain-text file with the extracted tune(s)
Tune-5577-get.log 4902 Log file, useful mostly for debugging
Tune-55771-get.log 3991 Log file, useful mostly for debugging
Tune-55772-get.log 5838 Log file, useful mostly for debugging
Tune-55776-get.log 4961 Log file, useful mostly for debugging
Tune-55777-get.log 5554 Log file, useful mostly for debugging
These files should be available for 24 hours.