Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1781/Feuillet_Essex_FtFIoD1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3519-Feuillet_Essex_FtFIoD1.ps) >>/Users/jc/w/tmp/Tune-3519-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1781/Feuillet_Essex_FtFIoD1.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_35196.log 129903 Log file, useful mostly for debugging
Tune-3519-Feuillet_Essex_FtFIoD1.abc 159 ABC music file with the extracted tune(s)
Tune-3519-Feuillet_Essex_FtFIoD1.ps 6 PostScript
Tune-3519-Feuillet_Essex_FtFIoD1.txt 159 Plain-text file with the extracted tune(s)
Tune-3519-get.log 4318 Log file, useful mostly for debugging
Tune-35190-get.log 4726 Log file, useful mostly for debugging
Tune-35192-all.abc 168 ABC music file with the extracted tune(s)
Tune-35192-all.ps 6 PostScript
Tune-35192-all.txt 168 Plain-text file with the extracted tune(s)
Tune-35192-get.log 3972 Log file, useful mostly for debugging
Tune-35194-get.log 5134 Log file, useful mostly for debugging
These files should be available for 24 hours.