pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-57543-Vals10.ps) >>/Users/jc/w/tmp/Tune-57543-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/scand/Vals10.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_57543.log 151917 Log file, useful mostly for debugging
Tune-57543-Vals10.abc 1966 ABC music file with the extracted tune(s)
Tune-57543-Vals10.ps 48464 PostScript
Tune-57543-Vals10.txt 1966 Plain-text file with the extracted tune(s)
Tune-57543-get.log 4291 Log file, useful mostly for debugging
These files should be available for 24 hours.