pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-50675-WhiteCockadeM.ps) >>/Users/jc/w/tmp/Tune-50675-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/500/WhiteCockadeM.abc

Error exit status 256; here are some files to check:

[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Sess-50675.log 2149208 Log file, useful mostly for debugging
Tune-50675-WhiteCockadeM.abc 568 ABC music file with the extracted tune(s)
Tune-50675-WhiteCockadeM.ps 35184 PostScript
Tune-50675-WhiteCockadeM.txt 568 Plain-text file with the extracted tune(s)
Tune-50675-get.log 4469 Log file, useful mostly for debugging
These files should be available for 24 hours.