pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-88779-Solomon_Levi_2.ps) >>/Users/jc/w/tmp/Tune-88779-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Square/Solomon_Levi_2.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_88779.log 273089 Log file, useful mostly for debugging
Tune-88779-Solomon_Levi_2.abc 493 ABC music file with the extracted tune(s)
Tune-88779-Solomon_Levi_2.ps 34802 PostScript
Tune-88779-Solomon_Levi_2.txt 493 Plain-text file with the extracted tune(s)
Tune-88779-get.log 4499 Log file, useful mostly for debugging
These files should be available for 24 hours.