pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-52666-FlowersOfMichiganReel.ps) >>/Users/jc/w/tmp/Tune-52666-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ryan-cole/Tunes/FlowersOfMichiganReel.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_52666.log 306812 Log file, useful mostly for debugging
Tune-52666-FlowersOfMichiganReel.abc 472 ABC music file with the extracted tune(s)
Tune-52666-FlowersOfMichiganReel.ps 34864 PostScript
Tune-52666-FlowersOfMichiganReel.txt 472 Plain-text file with the extracted tune(s)
Tune-52666-get.log 4799 Log file, useful mostly for debugging
These files should be available for 24 hours.