pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1605-Poll_Ha_Penny.ps) >>/Users/jc/w/tmp/Tune-1605-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Poll_Ha_Penny.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_16056.log 296974 Log file, useful mostly for debugging
Tune-1605-Poll_Ha_Penny.abc 743 ABC music file with the extracted tune(s)
Tune-1605-Poll_Ha_Penny.ps 39826 PostScript
Tune-1605-Poll_Ha_Penny.txt 743 Plain-text file with the extracted tune(s)
Tune-1605-get.log 5580 Log file, useful mostly for debugging
Tune-16054-get.log 3506 Log file, useful mostly for debugging
Tune-16055-get.log 5431 Log file, useful mostly for debugging
These files should be available for 24 hours.