pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-56298-FrenchRigaudonThe_PLFD1689_305.ps) >>/Users/jc/w/tmp/Tune-56298-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/FrenchRigaudonThe_PLFD1689_305.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_56298.log 444411 Log file, useful mostly for debugging
Tune-56298-FrenchRigaudonThe_PLFD1689_305.abc 563 ABC music file with the extracted tune(s)
Tune-56298-FrenchRigaudonThe_PLFD1689_305.ps 35653 PostScript
Tune-56298-FrenchRigaudonThe_PLFD1689_305.txt 563 Plain-text file with the extracted tune(s)
Tune-56298-get.log 10322 Log file, useful mostly for debugging
These files should be available for 24 hours.