pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-98663-N2K_pols.ps) >>/Users/jc/w/tmp/Tune-98663-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/scand/N2K_pols.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-98663-N2K_pols.abc 1973 ABC music file with the extracted tune(s)
Tune-98663-N2K_pols.ps 55067 PostScript
Tune-98663-N2K_pols.txt 1973 Plain-text file with the extracted tune(s)
Tune-98663-get.log 11878 Log file, useful mostly for debugging
These files should be available for 24 hours.