pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-72547-1035_Scotch_Contention.ps) >>/Users/jc/w/tmp/Tune-72547-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CaledonianCountryDances/1035_Scotch_Contention.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-72547-1035_Scotch_Contention.abc 1519 ABC music file with the extracted tune(s)
Tune-72547-1035_Scotch_Contention.ps 39698 PostScript
Tune-72547-1035_Scotch_Contention.txt 1519 Plain-text file with the extracted tune(s)
Tune-72547-get.log 4874 Log file, useful mostly for debugging
These files should be available for 24 hours.