pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7690-HillCountryTunes.ps) >>/Users/jc/w/tmp/Tune-7690-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/HillCountryTunes.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_76909.log 538635 Log file, useful mostly for debugging
Tune-7690-HillCountryTunes.abc 63059 ABC music file with the extracted tune(s)
Tune-7690-HillCountryTunes.ps 468135 PostScript
Tune-7690-HillCountryTunes.txt 63059 Plain-text file with the extracted tune(s)
Tune-7690-get.log 61695 Log file, useful mostly for debugging
Tune-76900-get.log 4033 Log file, useful mostly for debugging
Tune-76901-get.log 8480 Log file, useful mostly for debugging
Tune-76902-get.log 4445 Log file, useful mostly for debugging
Tune-76907-get.log 3212 Log file, useful mostly for debugging
Tune-76908-Goulding_SSEIFA.abc 340371 ABC music file with the extracted tune(s)
Tune-76908-Goulding_SSEIFA.pdf 4772942 Portable Data Format
Tune-76908-Goulding_SSEIFA.ps 2529621 PostScript
Tune-76908-Goulding_SSEIFA.txt 340371 Plain-text file with the extracted tune(s)
Tune-76908-get.log 348738 Log file, useful mostly for debugging
Tune-76909-get.log 4263 Log file, useful mostly for debugging
These files should be available for 24 hours.