pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4448-Gentle_Maiden-G-16-2.ps) >>/Users/jc/w/tmp/Tune-4448-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/jig/Gentle_Maiden-G-16-2.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-4448-Gentle_Maiden-G-16-2.abc 517 ABC music file with the extracted tune(s)
Tune-4448-Gentle_Maiden-G-16-2.ps 35952 PostScript
Tune-4448-Gentle_Maiden-G-16-2.txt 517 Plain-text file with the extracted tune(s)
Tune-4448-get.log 9089 Log file, useful mostly for debugging
Tune-44483-get.log 5530 Log file, useful mostly for debugging
Tune-44485-get.log 4352 Log file, useful mostly for debugging
Tune-44489-get.log 5476 Log file, useful mostly for debugging
These files should be available for 24 hours.