Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1812/OriginallyMine.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8601-OriginallyMine.ps) >>/Users/jc/w/tmp/Tune-8601-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1812/OriginallyMine.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_86018.log 1289 Log file, useful mostly for debugging
Tune-8601-OriginallyMine.abc 151 ABC music file with the extracted tune(s)
Tune-8601-OriginallyMine.ps 6 PostScript
Tune-8601-OriginallyMine.txt 151 Plain-text file with the extracted tune(s)
Tune-8601-get.log 4150 Log file, useful mostly for debugging
Tune-86010-get.log 2821 Log file, useful mostly for debugging
Tune-86012-get.log 1401 Log file, useful mostly for debugging
Tune-86016-get.log 1433 Log file, useful mostly for debugging
Tune-86018-get.log 3985 Log file, useful mostly for debugging
These files should be available for 24 hours.