pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8807-Fortification_Jig-D-40-3.ps) >>/Users/jc/w/tmp/Tune-8807-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/jig/Fortification_Jig-D-40-3.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_88070.log 311025 Log file, useful mostly for debugging
Coll_88071.log 311025 Log file, useful mostly for debugging
Tune-8807-Fortification_Jig-D-40-3.abc 699 ABC music file with the extracted tune(s)
Tune-8807-Fortification_Jig-D-40-3.ps 37117 PostScript
Tune-8807-Fortification_Jig-D-40-3.txt 699 Plain-text file with the extracted tune(s)
Tune-8807-get.log 4793 Log file, useful mostly for debugging
These files should be available for 24 hours.