pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-90363-4131_the_Lass_of_Livingston.ps) >>/Users/jc/w/tmp/Tune-90363-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR12/4131_the_Lass_of_Livingston.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-90363-4131_the_Lass_of_Livingston.abc 1292 ABC music file with the extracted tune(s)
Tune-90363-4131_the_Lass_of_Livingston.ps 45684 PostScript
Tune-90363-4131_the_Lass_of_Livingston.txt 1292 Plain-text file with the extracted tune(s)
Tune-90363-get.log 5021 Log file, useful mostly for debugging
These files should be available for 24 hours.