pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-30414-Coltbridge-D-32-2.ps) >>/Users/jc/w/tmp/Tune-30414-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/jig/Coltbridge-D-32-2.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_30414.log 308215 Log file, useful mostly for debugging
Tune-30414-Coltbridge-D-32-2.abc 571 ABC music file with the extracted tune(s)
Tune-30414-Coltbridge-D-32-2.ps 34259 PostScript
Tune-30414-Coltbridge-D-32-2.txt 571 Plain-text file with the extracted tune(s)
Tune-30414-get.log 10078 Log file, useful mostly for debugging
These files should be available for 24 hours.