pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7919-24CountryDances_1804_Preston.ps) >>/Users/jc/w/tmp/Tune-7919-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/24CountryDances_1804_Preston.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_7919.log 406569 Log file, useful mostly for debugging
Coll_79196.log 534420 Log file, useful mostly for debugging
Tune-7919-24CountryDances_1804_Preston.abc 18203 ABC music file with the extracted tune(s)
Tune-7919-24CountryDances_1804_Preston.ps 149275 PostScript
Tune-7919-24CountryDances_1804_Preston.txt 18203 Plain-text file with the extracted tune(s)
Tune-7919-get.log 18717 Log file, useful mostly for debugging
Tune-79195-get.log 6210 Log file, useful mostly for debugging
Tune-79197-get.log 4391 Log file, useful mostly for debugging
These files should be available for 24 hours.