pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7004-179_Captain_Jinks.ps) >>/Users/jc/w/tmp/Tune-7004-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/179_Captain_Jinks.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_70045.log 525107 Log file, useful mostly for debugging
Form_70043.log 970 Log file, useful mostly for debugging
Form_70044.log 1002 Log file, useful mostly for debugging
Form_70046.log 823 Log file, useful mostly for debugging
Tune-7004-179_Captain_Jinks.abc 1200 ABC music file with the extracted tune(s)
Tune-7004-179_Captain_Jinks.ps 36879 PostScript
Tune-7004-179_Captain_Jinks.txt 1200 Plain-text file with the extracted tune(s)
Tune-7004-get.log 12337 Log file, useful mostly for debugging
Tune-70043-get.log 2614 Log file, useful mostly for debugging
Tune-70044-get.log 3772 Log file, useful mostly for debugging
Tune-70045-get.log 1388 Log file, useful mostly for debugging
Tune-70049-get.log 3608 Log file, useful mostly for debugging
These files should be available for 24 hours.