Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book16/CharlesZeuner_TremontQuadrilles2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4167-CharlesZeuner_TremontQuadrilles2.ps) >>/Users/jc/w/tmp/Tune-4167-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book16/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-4167-CharlesZeuner_TremontQuadrilles2.abc 171 ABC music file with the extracted tune(s)
Tune-4167-CharlesZeuner_TremontQuadrilles2.ps 6 PostScript
Tune-4167-CharlesZeuner_TremontQuadrilles2.txt 171 Plain-text file with the extracted tune(s)
Tune-4167-get.log 4542 Log file, useful mostly for debugging
Tune-41670-Tune-62119-492.abc 166 ABC music file with the extracted tune(s)
Tune-41670-Tune-62119-492.ps 6 PostScript
Tune-41670-Tune-62119-492.txt 166 Plain-text file with the extracted tune(s)
Tune-41670-get.log 8015 Log file, useful mostly for debugging
Tune-41672-get.log 3888 Log file, useful mostly for debugging
Tune-41674-get.log 3122 Log file, useful mostly for debugging
Tune-41675-get.log 3244 Log file, useful mostly for debugging
Tune-41676-get.log 8119 Log file, useful mostly for debugging
Tune-41679-get.log 7334 Log file, useful mostly for debugging
These files should be available for 24 hours.