For music, try indieshuffle.com as a starting point. Source: about 1 year ago

YouTube doesn't carry a lot of indie music, and I'm really into indie music. I usually use indieshuffle.com. When I come across a new, I'll search online, and often it's not on YouTube but on, say, the band's soundcloud site. More often it's on Spotify. I use Spotify Premium. Another great feature of Spotify is that it provides the "if you like this, then you might like that feature." That's not on YouTube music,... Source: about 2 years ago

No need to use the server, Navidrome allows any client to connect remotely (WAN included) and play music that is hosted on the server. It also can be set up to transcode on the fly uncompressed music when it is accessed from a metered connection to minimize bandwidth usage. I barely scratched its surface, but it looks promising. The only requirement is that it needs the correct metadata to identify songs and... - Source: Hacker News / 11 days ago

I highly recommend Musicbrainz Picard: https://picard.musicbrainz.org/ It will match against the Musicbrainz database and will acoustically ID your files, so the tags can be completely wrong. Just dump folders of albums into the client, it will group and sort things and ID them. It works great. - Source: Hacker News / 11 days ago

Have you tried https://www.funkwhale.audio/? It can be used effectively as a "private spotify". Labeling is a solved problem thanks to https://picard.musicbrainz.org/, and the fact that a lot of the music you buy these days comes pre-labeled already. You then have a web-app (and/or a mobile app, if that's your thing) where you can stream music as you would with Spotify. You can even build yourself a little... - Source: Hacker News / 2 months ago

I use picard for my collection. My work flow is Picard > Lyrics Finder > Foobar for BPM, RealGain and DR > Custom python script to pull genre and mood from Last.FM and spotify> then Advanced Renamer to perform naming clean up of folder names. I lowercase and underscore spaces. Also does files if I happen to need Mp3Tag when Picard doesn't find anything. Once this is done I move files on to may NAS. Source: 6 months ago

Musicbrainz Picard - A great application that I've used in the past to identify and organize my saved music collection. It's not focused on adding semantic tags though: it's used for adding metadata to .mp3 files. Source: 7 months ago