pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3544-32181_CRAIGMILLAR_CASTLE_STRATHSPEY.ps) >>/Users/jc/w/tmp/Tune-3544-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/32181_CRAIGMILLAR_CASTLE_STRATHSPEY.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_35445.log 1185993 Log file, useful mostly for debugging
Form_35441.log 830 Log file, useful mostly for debugging
Form_35442.log 838 Log file, useful mostly for debugging
Form_35447.log 830 Log file, useful mostly for debugging
Tune-3544-32181_CRAIGMILLAR_CASTLE_STRATHSPEY.abc 739 ABC music file with the extracted tune(s)
Tune-3544-32181_CRAIGMILLAR_CASTLE_STRATHSPEY.ps 38402 PostScript
Tune-3544-32181_CRAIGMILLAR_CASTLE_STRATHSPEY.txt 739 Plain-text file with the extracted tune(s)
Tune-3544-get.log 5066 Log file, useful mostly for debugging
Tune-35445-get.log 5169 Log file, useful mostly for debugging
Tune-35448-get.log 5709 Log file, useful mostly for debugging
These files should be available for 24 hours.