pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8506-24CountryDances_1766_various.ps) >>/Users/jc/w/tmp/Tune-8506-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/24CountryDances_1766_various.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_85061.log 320860 Log file, useful mostly for debugging
Coll_85067.log 545660 Log file, useful mostly for debugging
Tune-8506-24CountryDances_1766_various.abc 9663 ABC music file with the extracted tune(s)
Tune-8506-24CountryDances_1766_various.ps 129274 PostScript
Tune-8506-24CountryDances_1766_various.txt 9663 Plain-text file with the extracted tune(s)
Tune-8506-get.log 18375 Log file, useful mostly for debugging
Tune-85061-get.log 4557 Log file, useful mostly for debugging
Tune-85062-get.log 4095 Log file, useful mostly for debugging
Tune-85063-get.log 4330 Log file, useful mostly for debugging
These files should be available for 24 hours.