Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/cache/Hamilton_HUTB1-1844-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4399-Hamilton_HUTB1-1844-V1.ps) >>/Users/jc/w/tmp/Tune-4399-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/cache/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_4399.log 1723 Log file, useful mostly for debugging
Form_43991.log 816 Log file, useful mostly for debugging
Tune-4399-Hamilton_HUTB1-1844-V1.abc 160 ABC music file with the extracted tune(s)
Tune-4399-Hamilton_HUTB1-1844-V1.ps 6 PostScript
Tune-4399-Hamilton_HUTB1-1844-V1.txt 160 Plain-text file with the extracted tune(s)
Tune-4399-get.log 4320 Log file, useful mostly for debugging
Tune-43990-get.log 4537 Log file, useful mostly for debugging
Tune-43992-get.log 4736 Log file, useful mostly for debugging
Tune-43993-get.log 4113 Log file, useful mostly for debugging
Tune-43994-get.log 5292 Log file, useful mostly for debugging
Tune-43995-get.log 4267 Log file, useful mostly for debugging
Tune-43996-Gow-CSR4-abc2.abc 152 ABC music file with the extracted tune(s)
Tune-43996-Gow-CSR4-abc2.pdf 2217 Portable Data Format
Tune-43996-Gow-CSR4-abc2.ps 6 PostScript
Tune-43996-Gow-CSR4-abc2.txt 152 Plain-text file with the extracted tune(s)
Tune-43996-get.log 16035 Log file, useful mostly for debugging
Tune-43997-get.log 4009 Log file, useful mostly for debugging
These files should be available for 24 hours.