Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book24/Hamilton_HUTB1-1844-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9248-Hamilton_HUTB1-1844-V1.ps) >>/Users/jc/w/tmp/Tune-9248-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book24/Hamilton_HUTB1-1844-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
Form_92481.log 939 Log file, useful mostly for debugging
Tune-9248-Hamilton_HUTB1-1844-V1.abc 161 ABC music file with the extracted tune(s)
Tune-9248-Hamilton_HUTB1-1844-V1.ps 6 PostScript
Tune-9248-Hamilton_HUTB1-1844-V1.txt 161 Plain-text file with the extracted tune(s)
Tune-9248-get.log 4326 Log file, useful mostly for debugging
Tune-92481-FARNE_Anonymous1.abc 154 ABC music file with the extracted tune(s)
Tune-92481-FARNE_Anonymous1.pdf 2217 Portable Data Format
Tune-92481-FARNE_Anonymous1.ps 6 PostScript
Tune-92481-FARNE_Anonymous1.txt 154 Plain-text file with the extracted tune(s)
Tune-92481-get.log 5062 Log file, useful mostly for debugging
Tune-92486-24CountryDances_1794_Preston.abc 164 ABC music file with the extracted tune(s)
Tune-92486-24CountryDances_1794_Preston.ps 6 PostScript
Tune-92486-24CountryDances_1794_Preston.txt 164 Plain-text file with the extracted tune(s)
Tune-92486-get.log 4455 Log file, useful mostly for debugging
Tune-92489-get.log 1301 Log file, useful mostly for debugging
These files should be available for 24 hours.