Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MusiciansCompanionP3/Feuillet_Essex_FtFIoD2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7468-Feuillet_Essex_FtFIoD2.ps) >>/Users/jc/w/tmp/Tune-7468-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MusiciansCompanionP3/Feuillet_Essex_FtFIoD2.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-7468-Feuillet_Essex_FtFIoD2.abc 175 ABC music file with the extracted tune(s)
Tune-7468-Feuillet_Essex_FtFIoD2.ps 6 PostScript
Tune-7468-Feuillet_Essex_FtFIoD2.txt 175 Plain-text file with the extracted tune(s)
Tune-7468-get.log 4410 Log file, useful mostly for debugging
Tune-74680-get.log 1381 Log file, useful mostly for debugging
Tune-74682-get.log 6173 Log file, useful mostly for debugging
Tune-74684-get.log 1370 Log file, useful mostly for debugging
Tune-74689-get.log 5248 Log file, useful mostly for debugging
Tune-74689-tune.abc 141 ABC music file with the extracted tune(s)
Tune-74689-tune.ps 6 PostScript
Tune-74689-tune.txt 141 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.