Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1793/CharlesZeuner_TremontQuadrilles1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2364-CharlesZeuner_TremontQuadrilles1.ps) >>/Users/jc/w/tmp/Tune-2364-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1793/CharlesZeuner_TremontQuadrilles1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-2364-CharlesZeuner_TremontQuadrilles1.abc 169 ABC music file with the extracted tune(s)
Tune-2364-CharlesZeuner_TremontQuadrilles1.ps 6 PostScript
Tune-2364-CharlesZeuner_TremontQuadrilles1.txt 169 Plain-text file with the extracted tune(s)
Tune-2364-get.log 4526 Log file, useful mostly for debugging
Tune-23640-24CountryDances_1793_Preston.abc 164 ABC music file with the extracted tune(s)
Tune-23640-24CountryDances_1793_Preston.pdf 2217 Portable Data Format
Tune-23640-24CountryDances_1793_Preston.ps 6 PostScript
Tune-23640-24CountryDances_1793_Preston.txt 164 Plain-text file with the extracted tune(s)
Tune-23640-get.log 5398 Log file, useful mostly for debugging
Tune-23643-24CountryDances_1771_Randall.abc 165 ABC music file with the extracted tune(s)
Tune-23643-24CountryDances_1771_Randall.txt 165 Plain-text file with the extracted tune(s)
Tune-23643-get.log 3510 Log file, useful mostly for debugging
These files should be available for 24 hours.