pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-95111-Maiden-D-21-3.ps) >>/Users/jc/w/tmp/Tune-95111-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ONeills/air/Maiden-D-21-3.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_95111.log 1431 Log file, useful mostly for debugging
Form_95111.log 843 Log file, useful mostly for debugging
Tune-95111-Maiden-D-21-3.abc 575 ABC music file with the extracted tune(s)
Tune-95111-Maiden-D-21-3.ps 36136 PostScript
Tune-95111-Maiden-D-21-3.txt 575 Plain-text file with the extracted tune(s)
Tune-95111-get.log 4526 Log file, useful mostly for debugging
These files should be available for 24 hours.