pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7153-NS_Anniv50.ps) >>/Users/jc/w/tmp/Tune-7153-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/SCD/NS_Anniv50.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_71535.log 886 Log file, useful mostly for debugging
Tune-7153-NS_Anniv50.abc 3562 ABC music file with the extracted tune(s)
Tune-7153-NS_Anniv50.ps 80260 PostScript
Tune-7153-NS_Anniv50.txt 3562 Plain-text file with the extracted tune(s)
Tune-7153-get.log 5992 Log file, useful mostly for debugging
Tune-71533-get.log 4218 Log file, useful mostly for debugging
These files should be available for 24 hours.