pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3114-DukeOfKentsWaltz.ps) >>/Users/jc/w/tmp/Tune-3114-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/england/DukeOfKentsWaltz.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_31141.log 275900 Log file, useful mostly for debugging
Coll_31148.log 568660 Log file, useful mostly for debugging
Tune-3114-DukeOfKentsWaltz.abc 1534 ABC music file with the extracted tune(s)
Tune-3114-DukeOfKentsWaltz.ps 44571 PostScript
Tune-3114-DukeOfKentsWaltz.txt 1534 Plain-text file with the extracted tune(s)
Tune-3114-get.log 5570 Log file, useful mostly for debugging
Tune-31140-get.log 4805 Log file, useful mostly for debugging
Tune-31142-get.log 4389 Log file, useful mostly for debugging
Tune-31147-Dedicado_a_Jos_RJ.abc 1060 ABC music file with the extracted tune(s)
Tune-31147-Dedicado_a_Jos_RJ.ps 42549 PostScript
Tune-31147-Dedicado_a_Jos_RJ.txt 1060 Plain-text file with the extracted tune(s)
Tune-31147-get.log 4515 Log file, useful mostly for debugging
These files should be available for 24 hours.