pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-55345-098_Jolly_is_the_Miller.ps) >>/Users/jc/w/tmp/Tune-55345-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/098_Jolly_is_the_Miller.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_55345.log 264661 Log file, useful mostly for debugging
Form_55345.log 952 Log file, useful mostly for debugging
Tune-55345-098_Jolly_is_the_Miller.abc 841 ABC music file with the extracted tune(s)
Tune-55345-098_Jolly_is_the_Miller.ps 33714 PostScript
Tune-55345-098_Jolly_is_the_Miller.txt 841 Plain-text file with the extracted tune(s)
Tune-55345-get.log 4837 Log file, useful mostly for debugging
These files should be available for 24 hours.