pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-52805-20171_Deil_Tak_the_Wars.ps) >>/Users/jc/w/tmp/Tune-52805-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ERM/20171_Deil_Tak_the_Wars.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_52805.log 455610 Log file, useful mostly for debugging
Tune-52805-20171_Deil_Tak_the_Wars.abc 833 ABC music file with the extracted tune(s)
Tune-52805-20171_Deil_Tak_the_Wars.ps 38400 PostScript
Tune-52805-20171_Deil_Tak_the_Wars.txt 833 Plain-text file with the extracted tune(s)
Tune-52805-get.log 4669 Log file, useful mostly for debugging
These files should be available for 24 hours.