pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6639-Wonder_Hp_Coeys_G.ps) >>/Users/jc/w/tmp/Tune-6639-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Wonder_Hp_Coeys_G.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_6639.log 282924 Log file, useful mostly for debugging
Coll_66394.log 295573 Log file, useful mostly for debugging
Coll_66397.log 504915 Log file, useful mostly for debugging
Tune-6639-Wonder_Hp_Coeys_G.abc 513 ABC music file with the extracted tune(s)
Tune-6639-Wonder_Hp_Coeys_G.ps 37787 PostScript
Tune-6639-Wonder_Hp_Coeys_G.txt 513 Plain-text file with the extracted tune(s)
Tune-6639-get.log 4590 Log file, useful mostly for debugging
Tune-66392-get.log 4969 Log file, useful mostly for debugging
Tune-66395-get.log 3474 Log file, useful mostly for debugging
Tune-66396-get.log 1482 Log file, useful mostly for debugging
These files should be available for 24 hours.