Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1776/Feuillet_Essex_FtFIoD2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4205-Feuillet_Essex_FtFIoD2.ps) >>/Users/jc/w/tmp/Tune-4205-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1776/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-4205-Feuillet_Essex_FtFIoD2.abc 159 ABC music file with the extracted tune(s)
Tune-4205-Feuillet_Essex_FtFIoD2.ps 6 PostScript
Tune-4205-Feuillet_Essex_FtFIoD2.txt 159 Plain-text file with the extracted tune(s)
Tune-4205-get.log 12547 Log file, useful mostly for debugging
Tune-42051-get.log 12571 Log file, useful mostly for debugging
Tune-42052-get.log 3666 Log file, useful mostly for debugging
Tune-42055-get.log 4036 Log file, useful mostly for debugging
Tune-42056-_.abc 401 ABC music file with the extracted tune(s)
Tune-42056-_.txt 401 Plain-text file with the extracted tune(s)
Tune-42056-get.log 20949 Log file, useful mostly for debugging
Tune-42057-get.log 4950 Log file, useful mostly for debugging
Tune-42058-get.log 5394 Log file, useful mostly for debugging
Tune-42059-get.log 4507 Log file, useful mostly for debugging
These files should be available for 24 hours.