pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-81875-10081_THE_HIGH_LEVEL.ps) >>/Users/jc/w/tmp/Tune-81875-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/10081_THE_HIGH_LEVEL.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_81875.log 255917 Log file, useful mostly for debugging
Form_81875.log 827 Log file, useful mostly for debugging
Tune-81875-10081_THE_HIGH_LEVEL.abc 627 ABC music file with the extracted tune(s)
Tune-81875-10081_THE_HIGH_LEVEL.ps 36004 PostScript
Tune-81875-10081_THE_HIGH_LEVEL.txt 627 Plain-text file with the extracted tune(s)
Tune-81875-get.log 4674 Log file, useful mostly for debugging
These files should be available for 24 hours.