pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1666-Original_Scottische_Polka_1.ps) >>/Users/jc/w/tmp/Tune-1666-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/shottish/Original_Scottische_Polka_1.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_16660.log 138935 Log file, useful mostly for debugging
Coll_16666.log 474009 Log file, useful mostly for debugging
Tune-1666-Original_Scottische_Polka_1.abc 494 ABC music file with the extracted tune(s)
Tune-1666-Original_Scottische_Polka_1.ps 37318 PostScript
Tune-1666-Original_Scottische_Polka_1.txt 494 Plain-text file with the extracted tune(s)
Tune-1666-get.log 4860 Log file, useful mostly for debugging
Tune-16660-get.log 3382 Log file, useful mostly for debugging
Tune-16661-get.log 12836 Log file, useful mostly for debugging
Tune-16668-get.log 4245 Log file, useful mostly for debugging
These files should be available for 24 hours.