puddletag is an audio tag editor (primarily created) for GNU/Linux similar to the Windows program, Mp3tag. Unlike most taggers for GNU/Linux, it uses a spreadsheet-like layout so that all the tags you want to edit by hand are visible and easily editable.
The usual tag editor features are supported like extracting tag information from filenames, renaming files based on their tags by using patterns and basic tag editing.
Then there are Functions, which can do things like replace text, trim it, do case conversions, etc. Actions can automate repetitive tasks. Doing web lookups using Amazon (including cover art), Discogs (does cover art too!), FreeDB and MusicBrainz is also supported. There’s quite a bit more, but I’ve reached my comma quota.
Both Discogs and Spotify offer a Web API for Third Party Applications like this one. After logging in with your Spotify account, you will be asked to provide a Discogs username. Using the Web APIs, we will query the public collection of the given user and try our best to match each release from the collection to an album on Spotify. The result will be stored for you inside a newly created playlist in your Spotify account.
You can block sellers, use a dark theme, see price comparisons, get feedback notifications, convert foreign currencies, search Discogs and other online record shops with any highlighted text, improve tracklist readability, customize lots of Marketplace aspects, and more!
Every feature is optional so you can choose only the features you want to use.
This plugin verifies your rips against CTDB database, and submits new CDs to it.
It can also serve as a metadata plugin, providing access to MusicBrainz, Discogs and FreeDB metadata via CTDB. CTDB replicates Musicbrainz database hourly, Discogs and FreeDB – monthly. In addition to direct discid search, it supports the same fuzzy search algorithm as Musicbrainz, and also uses it for Discogs and FreeDB data, increasing the chance that correct metadata will be found.
If you want to easily tag multiple MP3, Ogg/Vorbis, FLAC, MPC, MP4/AAC, MP2, Opus, Speex, TrueAudio, WavPack, WMA, WAV and AIFF files (e.g. full albums) without typing the same information again and again and have control over both ID3v1 and ID3v2 tags, then Kid3 is the program you are looking for.