pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-78319-58_HauntedTower.ps) >>/Users/jc/w/tmp/Tune-78319-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1791/Thompson/58_HauntedTower.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_78319.log 287140 Log file, useful mostly for debugging
Tune-78319-58_HauntedTower.abc 707 ABC music file with the extracted tune(s)
Tune-78319-58_HauntedTower.ps 34396 PostScript
Tune-78319-58_HauntedTower.txt 707 Plain-text file with the extracted tune(s)
Tune-78319-get.log 9497 Log file, useful mostly for debugging
These files should be available for 24 hours.