Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Entry/George_Meikle.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3761-George_Meikle.ps) >>/Users/jc/w/tmp/Tune-3761-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Entry/George_Meikle.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_37612.log 275011 Log file, useful mostly for debugging
Tune-3761-George_Meikle.abc 151 ABC music file with the extracted tune(s)
Tune-3761-George_Meikle.ps 6 PostScript
Tune-3761-George_Meikle.txt 151 Plain-text file with the extracted tune(s)
Tune-3761-get.log 4135 Log file, useful mostly for debugging
Tune-37610-get.log 5563 Log file, useful mostly for debugging
Tune-37614-get.log 3300 Log file, useful mostly for debugging
Tune-37616-get.log 8299 Log file, useful mostly for debugging
Tune-37617-get.log 9028 Log file, useful mostly for debugging
These files should be available for 24 hours.