pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20676-3445_Post_Horn_Galop.ps) >>/Users/jc/w/tmp/Tune-20676-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kerr/MM3/3445_Post_Horn_Galop.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_20676.log 855 Log file, useful mostly for debugging
Tune-20676-3445_Post_Horn_Galop.abc 558 ABC music file with the extracted tune(s)
Tune-20676-3445_Post_Horn_Galop.ps 37790 PostScript
Tune-20676-3445_Post_Horn_Galop.txt 558 Plain-text file with the extracted tune(s)
Tune-20676-get.log 4732 Log file, useful mostly for debugging
These files should be available for 24 hours.