pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-54645-20095_Drink_To_Me_Only.ps) >>/Users/jc/w/tmp/Tune-54645-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP2/20095_Drink_To_Me_Only.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-54645-20095_Drink_To_Me_Only.abc 546 ABC music file with the extracted tune(s)
Tune-54645-20095_Drink_To_Me_Only.ps 32133 PostScript
Tune-54645-20095_Drink_To_Me_Only.txt 546 Plain-text file with the extracted tune(s)
Tune-54645-get.log 6390 Log file, useful mostly for debugging
These files should be available for 24 hours.