pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-80444-01_Cooler.ps) >>/Users/jc/w/tmp/Tune-80444-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/KittyBridges/1745/01_Cooler.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_80444.log 663681 Log file, useful mostly for debugging
Tune-80444-01_Cooler.abc 1209 ABC music file with the extracted tune(s)
Tune-80444-01_Cooler.ps 38354 PostScript
Tune-80444-01_Cooler.txt 1209 Plain-text file with the extracted tune(s)
Tune-80444-get.log 4428 Log file, useful mostly for debugging
These files should be available for 24 hours.