pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-11138-10042_JIG.ps) >>/Users/jc/w/tmp/Tune-11138-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/10042_JIG.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_11138.log 954 Log file, useful mostly for debugging
Tune-11138-10042_JIG.abc 480 ABC music file with the extracted tune(s)
Tune-11138-10042_JIG.ps 34342 PostScript
Tune-11138-10042_JIG.txt 480 Plain-text file with the extracted tune(s)
Tune-11138-get.log 8067 Log file, useful mostly for debugging
These files should be available for 24 hours.