Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/mazurka/24CountryDances_1809_Cahusac_FTM.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2415-24CountryDances_1809_Cahusac_FTM.ps) >>/Users/jc/w/tmp/Tune-2415-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/mazurka/24CountryDances_1809_Cahusac_FTM.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_24158.log 276409 Log file, useful mostly for debugging
Coll_24159.log 284811 Log file, useful mostly for debugging
Form_2415.log 1008 Log file, useful mostly for debugging
Form_24155.log 1060 Log file, useful mostly for debugging
Form_24156.log 1032 Log file, useful mostly for debugging
Sess-24152.log 189740 Log file, useful mostly for debugging
Tune-2415-24CountryDances_1809_Cahusac_FTM.abc 172 ABC music file with the extracted tune(s)
Tune-2415-24CountryDances_1809_Cahusac_FTM.ps 6 PostScript
Tune-2415-24CountryDances_1809_Cahusac_FTM.txt 172 Plain-text file with the extracted tune(s)
Tune-2415-get.log 4546 Log file, useful mostly for debugging
Tune-24151-get.log 3552 Log file, useful mostly for debugging
Tune-24159-get.log 3192 Log file, useful mostly for debugging
These files should be available for 24 hours.