Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1793/CharlesZeuner_TremontQuadrilles2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5337-CharlesZeuner_TremontQuadrilles2.ps) >>/Users/jc/w/tmp/Tune-5337-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1793/CharlesZeuner_TremontQuadrilles2.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-5337-CharlesZeuner_TremontQuadrilles2.abc 169 ABC music file with the extracted tune(s)
Tune-5337-CharlesZeuner_TremontQuadrilles2.ps 6 PostScript
Tune-5337-CharlesZeuner_TremontQuadrilles2.txt 169 Plain-text file with the extracted tune(s)
Tune-5337-get.log 4530 Log file, useful mostly for debugging
Tune-53372-24CountryDances_1809_Cahusac.abc 165 ABC music file with the extracted tune(s)
Tune-53372-24CountryDances_1809_Cahusac.ps 6 PostScript
Tune-53372-24CountryDances_1809_Cahusac.txt 165 Plain-text file with the extracted tune(s)
Tune-53372-get.log 4369 Log file, useful mostly for debugging
Tune-53379-24CountryDances_1804TP_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-53379-24CountryDances_1804TP_Preston.ps 6 PostScript
Tune-53379-24CountryDances_1804TP_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-53379-get.log 4411 Log file, useful mostly for debugging
These files should be available for 24 hours.