pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6936-RuftyTufty.ps) >>/Users/jc/w/tmp/Tune-6936-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/england/RuftyTufty.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_69369.log 284330 Log file, useful mostly for debugging
Tune-6936-RuftyTufty.abc 1563 ABC music file with the extracted tune(s)
Tune-6936-RuftyTufty.ps 39307 PostScript
Tune-6936-RuftyTufty.txt 1563 Plain-text file with the extracted tune(s)
Tune-6936-get.log 4343 Log file, useful mostly for debugging
Tune-69360-Shottish16.abc 2640 ABC music file with the extracted tune(s)
Tune-69360-Shottish16.ps 54472 PostScript
Tune-69360-Shottish16.txt 2640 Plain-text file with the extracted tune(s)
Tune-69360-get.log 4399 Log file, useful mostly for debugging
These files should be available for 24 hours.