pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2702-Traveller_1495-G-16-2.ps) >>/Users/jc/w/tmp/Tune-2702-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/reel/Traveller_1495-G-16-2.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_27027.log 724412 Log file, useful mostly for debugging
Tune-2702-Traveller_1495-G-16-2.abc 566 ABC music file with the extracted tune(s)
Tune-2702-Traveller_1495-G-16-2.ps 36429 PostScript
Tune-2702-Traveller_1495-G-16-2.txt 566 Plain-text file with the extracted tune(s)
Tune-2702-get.log 13612 Log file, useful mostly for debugging
Tune-27029-get.log 3168 Log file, useful mostly for debugging
These files should be available for 24 hours.