pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-71616-21522_IRISH_AIR.ps) >>/Users/jc/w/tmp/Tune-71616-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/21522_IRISH_AIR.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_71616.log 261851 Log file, useful mostly for debugging
Form_71616.log 824 Log file, useful mostly for debugging
Tune-71616-21522_IRISH_AIR.abc 485 ABC music file with the extracted tune(s)
Tune-71616-21522_IRISH_AIR.ps 34035 PostScript
Tune-71616-21522_IRISH_AIR.txt 485 Plain-text file with the extracted tune(s)
Tune-71616-get.log 4557 Log file, useful mostly for debugging
These files should be available for 24 hours.