Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MusiciansCompanionP3/Hamilton_HUTB2-1846-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3630-Hamilton_HUTB2-1846-V2.ps) >>/Users/jc/w/tmp/Tune-3630-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MusiciansCompanionP3/Hamilton_HUTB2-1846-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
Coll_36304.log 116817 Log file, useful mostly for debugging
Tune-3630-Hamilton_HUTB2-1846-V2.abc 175 ABC music file with the extracted tune(s)
Tune-3630-Hamilton_HUTB2-1846-V2.ps 6 PostScript
Tune-3630-Hamilton_HUTB2-1846-V2.txt 175 Plain-text file with the extracted tune(s)
Tune-3630-get.log 17763 Log file, useful mostly for debugging
Tune-36300-get.log 206819 Log file, useful mostly for debugging
Tune-36303-get.log 10248 Log file, useful mostly for debugging
Tune-36306-get.log 6810 Log file, useful mostly for debugging
Tune-36307-get.log 3590 Log file, useful mostly for debugging
Tune-36309-get.log 9778 Log file, useful mostly for debugging
These files should be available for 24 hours.