pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1853-24CountryDances_1782_Thompson.ps) >>/Users/jc/w/tmp/Tune-1853-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/24CountryDances_1782_Thompson.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_18533.log 294164 Log file, useful mostly for debugging
Coll_18535.log 331905 Log file, useful mostly for debugging
Coll_18539.log 409375 Log file, useful mostly for debugging
Tune-1853-24CountryDances_1782_Thompson.abc 10865 ABC music file with the extracted tune(s)
Tune-1853-24CountryDances_1782_Thompson.ps 80154 PostScript
Tune-1853-24CountryDances_1782_Thompson.txt 10865 Plain-text file with the extracted tune(s)
Tune-1853-get.log 11728 Log file, useful mostly for debugging
Tune-18530-get.log 6077 Log file, useful mostly for debugging
Tune-18538-get.log 4847 Log file, useful mostly for debugging
These files should be available for 24 hours.