pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9133-20571_Jim_Crow.ps) >>/Users/jc/w/tmp/Tune-9133-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EliasHowe/MusiciansCompanionP2/20571_Jim_Crow.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_91334.log 282012 Log file, useful mostly for debugging
Sess-91338.log 15785 Log file, useful mostly for debugging
Tune-9133-20571_Jim_Crow.abc 774 ABC music file with the extracted tune(s)
Tune-9133-20571_Jim_Crow.ps 35879 PostScript
Tune-9133-20571_Jim_Crow.txt 774 Plain-text file with the extracted tune(s)
Tune-9133-get.log 17636 Log file, useful mostly for debugging
Tune-91330-24CountryDances_1809_Button_Whitaker.abc 172 ABC music file with the extracted tune(s)
Tune-91330-24CountryDances_1809_Button_Whitaker.pdf 2217 Portable Data Format
Tune-91330-24CountryDances_1809_Button_Whitaker.ps 6 PostScript
Tune-91330-24CountryDances_1809_Button_Whitaker.txt 172 Plain-text file with the extracted tune(s)
Tune-91330-get.log 5630 Log file, useful mostly for debugging
Tune-91332-get.log 12180 Log file, useful mostly for debugging
Tune-91333-get.log 9182 Log file, useful mostly for debugging
Tune-91337-get.log 4521 Log file, useful mostly for debugging
These files should be available for 24 hours.