I am in the process of writing a small script to submit all music my DLNA server (minimserver) has served to listenbrainz. I wrote that to learn a little bit python. Right now it is just a script you call and runs in the foreground and gives some verbose output of what it does.Probably only works with files that are tagged with MBIDs (guess it will throw an error else)
Cool, thanks for the contribution! We don't currently have a list of tools which can submit to ListenBrainz, but this sounds like a good thing that we should add soon.