pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-28156-Garland.ps) >>/Users/jc/w/tmp/Tune-28156-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/Garland.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_28156.log 724654 Log file, useful mostly for debugging
Tune-28156-Garland.abc 1000 ABC music file with the extracted tune(s)
Tune-28156-Garland.ps 34716 PostScript
Tune-28156-Garland.txt 1000 Plain-text file with the extracted tune(s)
Tune-28156-get.log 4855 Log file, useful mostly for debugging
These files should be available for 24 hours.