pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8450-Bath_Medley.ps) >>/Users/jc/w/tmp/Tune-8450-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JohnWalsh/Bath_Medley.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_8450.log 1491747 Log file, useful mostly for debugging
Tune-8450-Bath_Medley.abc 1088 ABC music file with the extracted tune(s)
Tune-8450-Bath_Medley.ps 33723 PostScript
Tune-8450-Bath_Medley.txt 1088 Plain-text file with the extracted tune(s)
Tune-8450-get.log 4438 Log file, useful mostly for debugging
Tune-84501-24CountryDances_1800_Preston.abc 162 ABC music file with the extracted tune(s)
Tune-84501-24CountryDances_1800_Preston.txt 162 Plain-text file with the extracted tune(s)
Tune-84501-get.log 3490 Log file, useful mostly for debugging
Tune-84506-get.log 1413 Log file, useful mostly for debugging
These files should be available for 24 hours.