pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6513-Pols_Bingsjo3.ps) >>/Users/jc/w/tmp/Tune-6513-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/scand/Pols_Bingsjo3.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_65132.log 288545 Log file, useful mostly for debugging
Coll_65135.log 282925 Log file, useful mostly for debugging
Coll_65136.log 284330 Log file, useful mostly for debugging
Coll_65138.log 653990 Log file, useful mostly for debugging
Tune-6513-Pols_Bingsjo3.abc 2148 ABC music file with the extracted tune(s)
Tune-6513-Pols_Bingsjo3.ps 57926 PostScript
Tune-6513-Pols_Bingsjo3.txt 2148 Plain-text file with the extracted tune(s)
Tune-6513-get.log 4442 Log file, useful mostly for debugging
Tune-65131-get.log 3905 Log file, useful mostly for debugging
Tune-65132-get.log 1341 Log file, useful mostly for debugging
These files should be available for 24 hours.