pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-87936-441_Halfway_Measures.ps) >>/Users/jc/w/tmp/Tune-87936-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/BotCDaSS/441_Halfway_Measures.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_87936.log 471008 Log file, useful mostly for debugging
Tune-87936-441_Halfway_Measures.abc 2463 ABC music file with the extracted tune(s)
Tune-87936-441_Halfway_Measures.ps 33750 PostScript
Tune-87936-441_Halfway_Measures.txt 2463 Plain-text file with the extracted tune(s)
Tune-87936-get.log 9613 Log file, useful mostly for debugging
These files should be available for 24 hours.