Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/MacNab02/Kerr_MM1-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6540-Kerr_MM1-V2.ps) >>/Users/jc/w/tmp/Tune-6540-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/MacNab02/Kerr_MM1-V2.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-6540-Kerr_MM1-V2.abc 152 ABC music file with the extracted tune(s)
Tune-6540-Kerr_MM1-V2.ps 6 PostScript
Tune-6540-Kerr_MM1-V2.txt 152 Plain-text file with the extracted tune(s)
Tune-6540-get.log 4107 Log file, useful mostly for debugging
Tune-65400-get.log 110924 Log file, useful mostly for debugging
Tune-65403-get.log 3499 Log file, useful mostly for debugging
Tune-65404-get.log 4208 Log file, useful mostly for debugging
Tune-65406-get.log 3524 Log file, useful mostly for debugging
Tune-65407-get.log 1396 Log file, useful mostly for debugging
These files should be available for 24 hours.