pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-64936-Snoa01.ps) >>/Users/jc/w/tmp/Tune-64936-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scand/Snoa01.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_64936.log 284330 Log file, useful mostly for debugging
Tune-64936-Snoa01.abc 2116 ABC music file with the extracted tune(s)
Tune-64936-Snoa01.ps 51925 PostScript
Tune-64936-Snoa01.txt 2116 Plain-text file with the extracted tune(s)
Tune-64936-get.log 4253 Log file, useful mostly for debugging
These files should be available for 24 hours.