Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1767/CharlesZeuner_TremontQuadrilles2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9805-CharlesZeuner_TremontQuadrilles2.ps) >>/Users/jc/w/tmp/Tune-9805-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1767/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
Coll_98051.log 455743 Log file, useful mostly for debugging
Coll_98058.log 1215117 Log file, useful mostly for debugging
Tune-9805-CharlesZeuner_TremontQuadrilles2.abc 169 ABC music file with the extracted tune(s)
Tune-9805-CharlesZeuner_TremontQuadrilles2.ps 6 PostScript
Tune-9805-CharlesZeuner_TremontQuadrilles2.txt 169 Plain-text file with the extracted tune(s)
Tune-9805-get.log 4528 Log file, useful mostly for debugging
Tune-98050-get.log 5178 Log file, useful mostly for debugging
Tune-98051-EliasHowe_MusiciansCompanionP1-1842-V2.abc 175 ABC music file with the extracted tune(s)
Tune-98051-EliasHowe_MusiciansCompanionP1-1842-V2.ps 6 PostScript
Tune-98051-EliasHowe_MusiciansCompanionP1-1842-V2.txt 175 Plain-text file with the extracted tune(s)
Tune-98051-get.log 4581 Log file, useful mostly for debugging
Tune-98055-get.log 4578 Log file, useful mostly for debugging
These files should be available for 24 hours.