pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1489-2094_Lady_Jemima_Hohnston.ps) >>/Users/jc/w/tmp/Tune-1489-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM2/2094_Lady_Jemima_Hohnston.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_14892.log 275011 Log file, useful mostly for debugging
Coll_14894.log 286211 Log file, useful mostly for debugging
Tune-1489-2094_Lady_Jemima_Hohnston.abc 698 ABC music file with the extracted tune(s)
Tune-1489-2094_Lady_Jemima_Hohnston.ps 40072 PostScript
Tune-1489-2094_Lady_Jemima_Hohnston.txt 698 Plain-text file with the extracted tune(s)
Tune-1489-get.log 4851 Log file, useful mostly for debugging
Tune-14890-GoldenBookOfFavoriteSongs1.abc 163 ABC music file with the extracted tune(s)
Tune-14890-GoldenBookOfFavoriteSongs1.ps 6 PostScript
Tune-14890-GoldenBookOfFavoriteSongs1.txt 163 Plain-text file with the extracted tune(s)
Tune-14890-get.log 4444 Log file, useful mostly for debugging
Tune-14893-get.log 3240 Log file, useful mostly for debugging
Tune-14896-Landrin_Potpourri.abc 154 ABC music file with the extracted tune(s)
Tune-14896-Landrin_Potpourri.txt 154 Plain-text file with the extracted tune(s)
Tune-14896-get.log 3312 Log file, useful mostly for debugging
These files should be available for 24 hours.