Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MusiciansCompanionP2/Hamilton_HUTB1-1844-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2096-Hamilton_HUTB1-1844-V1.ps) >>/Users/jc/w/tmp/Tune-2096-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MusiciansCompanionP2/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
Coll_20960.log 658612 Log file, useful mostly for debugging
Coll_20968.log 2161753 Log file, useful mostly for debugging
List20962.log 164 Log file, useful mostly for debugging
Tune-2096-Hamilton_HUTB1-1844-V1.abc 175 ABC music file with the extracted tune(s)
Tune-2096-Hamilton_HUTB1-1844-V1.ps 6 PostScript
Tune-2096-Hamilton_HUTB1-1844-V1.txt 175 Plain-text file with the extracted tune(s)
Tune-2096-get.log 14970 Log file, useful mostly for debugging
Tune-20961-get.log 4494 Log file, useful mostly for debugging
Tune-20962-get.log 3262 Log file, useful mostly for debugging
Tune-20964-get.log 5730 Log file, useful mostly for debugging
Tune-20966-get.log 4822 Log file, useful mostly for debugging
Tune-20967-get.log 15455 Log file, useful mostly for debugging
Tune-20969-get.log 4202 Log file, useful mostly for debugging
These files should be available for 24 hours.