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The largest downloadable music database with over 150 Million songs

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# OMDB
To aid creating [*Openmusic-Compatible* servers](https://github.com/OatsCG/Openmusic-Server-Specs), and for educational purposes.

OMDB (Openmusic Database) is the worlds largest openly downloadable database with metadata for over 154 million songs, 28 million albums, and 5 million artists. (**4x larger** than MusicBrainz, ~same as Discogs [<sup>[1]</sup>](https://en.wikipedia.org/wiki/List_of_online_music_databases))

### [Download the OMDB from OneDrive here.](https://utoronto-my.sharepoint.com/:u:/g/personal/charlie_giannis_mail_utoronto_ca/IQCb_Ylbq7IfT5AvGvtFpF49AbvzdR7bEjiQqHYr5qjzR4w?e=kfzlrE)
> fulldb.tar 80.3 GB -> 172 GB, Created Oct 2 2024, Expires May 31, 2026
>> 154,331,239 tracks, 28,046,579 albums, 5,779,932 artists, 154,494,422 playbacks
  #### [Download the Lite OMDB (Album.Tracks[0].Views > 1000) from OneDrive here.](https://utoronto-my.sharepoint.com/:u:/g/personal/charlie_giannis_mail_utoronto_ca/IQAEnJBT0HH0QIfKoNwbpqhaAYPOPK6VO2t6RoFhD2BrLgc?e=ukFZMp)
> litedb.tar 11 GB -> 27 GB, Created Feb 12 2026, Expires May 31, 2026
>> 20,259,113 tracks, 1,825,812 albums, 4,505,306 artists, 20,275,432 playbacks

### Copyright Notice
The OMDB is for research purposes only. Public use of the database is permitted, however it is your responsibility to ensure that copyright laws for your country are followed. Failure to do so may result in legal pursuit by the owners of the content you are infringing on. Research your country's copyright laws before proceeding.

## How To Use
`fulldb.tar` is a dump of a [PostgreSQL 15](https://www.postgresql.org/download/) database. To use it, you must first create an empty PostgreSQL 15 database, and then restore using the tar file.

DO NOT unzip the tar file. For that matter, do not unzip/open any file downloaded from the internet, unless you're using the proper tools as shown below.

`fulldb.tar` restores into a database that is **175 GB**, and `litedb.tar` into **27 GB**. Make sure you have sufficient storage before proceeding.

### Creating a Database
I recommend using a GUI such as [pgAdmin](https://www.pgadmin.org/), or you can use the terminal.

This will create an empty database called fulldb, assuming PostgreSQL is installed in `/Library`:
```
/Library/PostgreSQL/15/bin/createdb -W fulldb
```

### Restoring via fulldb.tar
Next, write fulldb.tar to the database fulldb:
```
/Library/PostgreSQL/15/bin/pg_restore -W -d fulldb < fulldb.tar
```
On my Macbook Pro (M1 Pro 2021), this step takes about 4 hours with this file. Once restored, you can query the database via pgAdmin, or a library such as [pg (Node JS)](https://www.npmjs.com/package/pg) or [psycopg2 (Python)](https://pypi.org/project/psycopg2/). Your first step should be to run "ANALYZE" to speed up full-text search.

## Database Schema

### Artists
- **Description**: Stores information about artists.
- **Columns**:
  - `ID`: TEXT, Primary Key
  - `Name`: TEXT
  - `Profile_Photo`: TEXT
  - `Subscribers`: INT

### Albums
- **Description**: Stores information about albums.
- **Columns**:
  - `ID`: TEXT, Primary Key
  - `Title`: TEXT
  - `Artwork`: TEXT
  - `Type`: TEXT
  - `Year`: INT

### Playbacks
- **Description**: Stores playback data, including the audio and video YouTube ID.
- **Columns**:
  - `ID`: SERIAL, Primary Key
  - `Audio_YTID`: TEXT
  - `Video_YTID`: TEXT
  - `Audio_Live`: TEXT
  - `Is_Explicit`: INT

### Tracks
- **Description**: Stores information about tracks, including indexed search vectors and trigram indexes.
- **Columns**:
  - `ID`: TEXT, Primary Key
  - `Playback_Clean`: INT, References `Playbacks(ID)`
  - `Playback_Explicit`: INT, References `Playbacks(ID)`
  - `MXID`: TEXT
  - `Title`: TEXT
  - `Runtime_Seconds`: INT
  - `Views`: INT
  - `Album_Index`: INT
  - `Album`: TEXT, References `Albums(ID)`
  - `TitleTrgm`: TEXT
  - `AlbumTrgm`: TEXT
  - `ArtistsTrgm`: TEXT
  - `title_vector`: tsvector
  - `album_vector`: tsvector
  - `artist_vector`: tsvector
  - `combined_vector`: tsvector

### Album_Relation
- **Description**: Defines an Album's base album. "Album 1" and "Album 1 (Deluxe)" have equal baseIDs.
- **Columns**:
  - `relatedID`: TEXT
  - `baseID`: TEXT

### Artist_Album
- **Description**: Relationship between artists and albums.
- **Columns**:
  - `Artist_ID`: TEXT, References `Artists(ID)`
  - `Album_ID`: TEXT, References `Albums(ID)`
  - Composite Primary Key: (`Artist_ID`, `Album_ID`)

### Artist_Track
- **Description**: Relationship between artists and tracks.
- **Columns**:
  - `Artist_ID`: TEXT, References `Artists(ID)`
  - `Track_ID`: TEXT, References `Tracks(ID)`
  - Composite Primary Key: (`Artist_ID`, `Track_ID`)

### Features_Track
- **Description**: Relationship between featured artists and tracks.
- **Columns**:
  - `Artist_ID`: TEXT, References `Artists(ID)`
  - `Track_ID`: TEXT, References `Tracks(ID)`
  - Composite Primary Key: (`Artist_ID`, `Track_ID`)

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