pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-38476-036_Gigg_by_Mr_Arne.ps) >>/Users/jc/w/tmp/Tune-38476-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Stewart/SCAJMR/036_Gigg_by_Mr_Arne.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-38476-036_Gigg_by_Mr_Arne.abc 475 ABC music file with the extracted tune(s)
Tune-38476-036_Gigg_by_Mr_Arne.ps 32959 PostScript
Tune-38476-036_Gigg_by_Mr_Arne.txt 475 Plain-text file with the extracted tune(s)
Tune-38476-get.log 4711 Log file, useful mostly for debugging
These files should be available for 24 hours.