schema.graphql

type Song {
  title: String!
  album: Album!
  lyrics: String!
  tags: [Tag!]! @relation
}

type Album {
  title: String! @unique
  songs: [Song!]! @relation
}

type Tag {
  name: String! @unique
  songs: [Song!]! @relation
}

type User {
  email: String! @unique
  roles: [Role!]!
}

enum Role {
  basic
  admin
}

type Query {
  allTags: [Tag!]!
  allAlbums: [Album!]!
  allSongs: [Song!]!
  songsForTag(tagID: ID!): [Song!]!
    @resolver(name: "songs_for_tag", paginated: true)
}