pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2354-Cuckoo-WaS---.ps) >>/Users/jc/w/tmp/Tune-2354-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/was/Cuckoo-WaS---.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_23541.log 809 Log file, useful mostly for debugging
Tune-2354-Cuckoo-WaS---.abc 301 ABC music file with the extracted tune(s)
Tune-2354-Cuckoo-WaS---.ps 33083 PostScript
Tune-2354-Cuckoo-WaS---.txt 301 Plain-text file with the extracted tune(s)
Tune-2354-get.log 4511 Log file, useful mostly for debugging
Tune-23547-get.log 3869 Log file, useful mostly for debugging
These files should be available for 24 hours.