pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9894-Roseland_Hill-G-16-4.ps) >>/Users/jc/w/tmp/Tune-9894-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/reel/Roseland_Hill-G-16-4.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_9894.log 1313871 Log file, useful mostly for debugging
Coll_98948.log 953510 Log file, useful mostly for debugging
Tune-9894-Roseland_Hill-G-16-4.abc 477 ABC music file with the extracted tune(s)
Tune-9894-Roseland_Hill-G-16-4.ps 35703 PostScript
Tune-9894-Roseland_Hill-G-16-4.txt 477 Plain-text file with the extracted tune(s)
Tune-9894-get.log 5270 Log file, useful mostly for debugging
Tune-98948-get.log 4694 Log file, useful mostly for debugging
These files should be available for 24 hours.