pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6928-10711_.ps) >>/Users/jc/w/tmp/Tune-6928-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP1/10711_.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-6928-10711_.abc 33 ABC music file with the extracted tune(s)
Tune-6928-10711_.ps 6 PostScript
Tune-6928-10711_.txt 33 Plain-text file with the extracted tune(s)
Tune-6928-get.log 8458 Log file, useful mostly for debugging
Tune-69280-get.log 3936 Log file, useful mostly for debugging
Tune-69281-get.log 6015 Log file, useful mostly for debugging
Tune-69282-get.log 8139 Log file, useful mostly for debugging
Tune-69283-get.log 5444 Log file, useful mostly for debugging
Tune-69284-get.log 5725 Log file, useful mostly for debugging
Tune-69286-get.log 12906 Log file, useful mostly for debugging
Tune-69287-get.log 9041 Log file, useful mostly for debugging
These files should be available for 24 hours.