Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Roy_Goldring/Hamilton_HUTB1-1844-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8958-Hamilton_HUTB1-1844-V2.ps) >>/Users/jc/w/tmp/Tune-8958-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Roy_Goldring/Hamilton_HUTB1-1844-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_89583.log 274495 Log file, useful mostly for debugging
Tune-8958-Hamilton_HUTB1-1844-V2.abc 167 ABC music file with the extracted tune(s)
Tune-8958-Hamilton_HUTB1-1844-V2.ps 6 PostScript
Tune-8958-Hamilton_HUTB1-1844-V2.txt 167 Plain-text file with the extracted tune(s)
Tune-8958-get.log 10187 Log file, useful mostly for debugging
Tune-89585-24CountryDances_1809_Cahusac.abc 168 ABC music file with the extracted tune(s)
Tune-89585-24CountryDances_1809_Cahusac.txt 168 Plain-text file with the extracted tune(s)
Tune-89585-get.log 3528 Log file, useful mostly for debugging
Tune-89589-get.log 5774 Log file, useful mostly for debugging
These files should be available for 24 hours.