Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/GftF/George_Meikle.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2204-George_Meikle.ps) >>/Users/jc/w/tmp/Tune-2204-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/GftF/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
Tune-2204-George_Meikle.abc 150 ABC music file with the extracted tune(s)
Tune-2204-George_Meikle.ps 6 PostScript
Tune-2204-George_Meikle.txt 150 Plain-text file with the extracted tune(s)
Tune-2204-get.log 4127 Log file, useful mostly for debugging
Tune-22040-get.log 3262 Log file, useful mostly for debugging
Tune-22043-get.log 4431 Log file, useful mostly for debugging
Tune-22044-get.log 4758 Log file, useful mostly for debugging
Tune-22047-get.log 4872 Log file, useful mostly for debugging
Tune-22048-get.log 4720 Log file, useful mostly for debugging
Tune-22049-get.log 5539 Log file, useful mostly for debugging
These files should be available for 24 hours.