pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-79647-Watchmaker_1539-Am-16-2.ps) >>/Users/jc/w/tmp/Tune-79647-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ONeills/reel/Watchmaker_1539-Am-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_79647.log 271686 Log file, useful mostly for debugging
Tune-79647-Watchmaker_1539-Am-16-2.abc 512 ABC music file with the extracted tune(s)
Tune-79647-Watchmaker_1539-Am-16-2.ps 35755 PostScript
Tune-79647-Watchmaker_1539-Am-16-2.txt 512 Plain-text file with the extracted tune(s)
Tune-79647-get.log 5376 Log file, useful mostly for debugging
These files should be available for 24 hours.