pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8779-Waltz_StefanAndLizs.ps) >>/Users/jc/w/tmp/Tune-8779-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Contra/Waltz_StefanAndLizs.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_87797.log 270279 Log file, useful mostly for debugging
Tune-8779-Waltz_StefanAndLizs.abc 2039 ABC music file with the extracted tune(s)
Tune-8779-Waltz_StefanAndLizs.ps 51750 PostScript
Tune-8779-Waltz_StefanAndLizs.txt 2039 Plain-text file with the extracted tune(s)
Tune-8779-get.log 5798 Log file, useful mostly for debugging
Tune-87791-get.log 5548 Log file, useful mostly for debugging
These files should be available for 24 hours.