pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-81994-3273_the_Feet_Washing.ps) >>/Users/jc/w/tmp/Tune-81994-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR12/3273_the_Feet_Washing.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-81994-3273_the_Feet_Washing.abc 914 ABC music file with the extracted tune(s)
Tune-81994-3273_the_Feet_Washing.ps 41254 PostScript
Tune-81994-3273_the_Feet_Washing.txt 914 Plain-text file with the extracted tune(s)
Tune-81994-get.log 4740 Log file, useful mostly for debugging
These files should be available for 24 hours.