pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3933-32473_MR_MORTHLANDS_REEL.ps) >>/Users/jc/w/tmp/Tune-3933-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/32473_MR_MORTHLANDS_REEL.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_39331.log 264661 Log file, useful mostly for debugging
Form_39331.log 829 Log file, useful mostly for debugging
Form_39334.log 846 Log file, useful mostly for debugging
Tune-3933-32473_MR_MORTHLANDS_REEL.abc 496 ABC music file with the extracted tune(s)
Tune-3933-32473_MR_MORTHLANDS_REEL.ps 34364 PostScript
Tune-3933-32473_MR_MORTHLANDS_REEL.txt 496 Plain-text file with the extracted tune(s)
Tune-3933-get.log 8707 Log file, useful mostly for debugging
Tune-39335-get.log 5015 Log file, useful mostly for debugging
Tune-39336-get.log 4539 Log file, useful mostly for debugging
These files should be available for 24 hours.