pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-97543-Book23.ps) >>/Users/jc/w/tmp/Tune-97543-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/SCD/Book23.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_97543.log 833 Log file, useful mostly for debugging
Tune-97543-Book23.abc 14132 ABC music file with the extracted tune(s)
Tune-97543-Book23.ps 166752 PostScript
Tune-97543-Book23.txt 14132 Plain-text file with the extracted tune(s)
Tune-97543-get.log 20791 Log file, useful mostly for debugging
These files should be available for 24 hours.