pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-78124-24CountryDances_1782_Skillern.ps) >>/Users/jc/w/tmp/Tune-78124-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/24CountryDances_1782_Skillern.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_78124.log 264659 Log file, useful mostly for debugging
Tune-78124-24CountryDances_1782_Skillern.abc 17461 ABC music file with the extracted tune(s)
Tune-78124-24CountryDances_1782_Skillern.ps 121148 PostScript
Tune-78124-24CountryDances_1782_Skillern.txt 17461 Plain-text file with the extracted tune(s)
Tune-78124-get.log 20019 Log file, useful mostly for debugging
These files should be available for 24 hours.