pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3595-ImDreamingOfHome.ps) >>/Users/jc/w/tmp/Tune-3595-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/Contra/ImDreamingOfHome.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_35950.log 257636 Log file, useful mostly for debugging
Coll_35953.log 499299 Log file, useful mostly for debugging
Coll_35954.log 249206 Log file, useful mostly for debugging
Form_35954.log 839 Log file, useful mostly for debugging
Tune-3595-ImDreamingOfHome.abc 1729 ABC music file with the extracted tune(s)
Tune-3595-ImDreamingOfHome.ps 40766 PostScript
Tune-3595-ImDreamingOfHome.txt 1729 Plain-text file with the extracted tune(s)
Tune-3595-get.log 4961 Log file, useful mostly for debugging
Tune-35951-get.log 6408 Log file, useful mostly for debugging
Tune-35956-get.log 3798 Log file, useful mostly for debugging
Tune-35958-get.log 5438 Log file, useful mostly for debugging
These files should be available for 24 hours.