Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/JJC/Hamilton_Kerr_MM2-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1460-Hamilton_Kerr_MM2-V1.ps) >>/Users/jc/w/tmp/Tune-1460-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JJC/Hamilton_Kerr_MM2-V1.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-1460-Hamilton_Kerr_MM2-V1.abc 156 ABC music file with the extracted tune(s)
Tune-1460-Hamilton_Kerr_MM2-V1.ps 6 PostScript
Tune-1460-Hamilton_Kerr_MM2-V1.txt 156 Plain-text file with the extracted tune(s)
Tune-1460-get.log 4268 Log file, useful mostly for debugging
Tune-14600-get.log 3971 Log file, useful mostly for debugging
Tune-14602-get.log 5676 Log file, useful mostly for debugging
Tune-14603-get.log 4978 Log file, useful mostly for debugging
Tune-14604-get.log 7478 Log file, useful mostly for debugging
Tune-14607-get.log 3969 Log file, useful mostly for debugging
Tune-14608-get.log 4683 Log file, useful mostly for debugging
These files should be available for 24 hours.