id- setId(string $id): void
- getId(): string
score- setScore(float $score): void
- getScore(): float
sources- setSources(int $sources): void
- getSources(): int
title- setTitle(string $title): void
- getTitle(): string
duration- setDuration(float $duration): void
- getDuration(): float
artists- setArtists(array $artists): void
- getArtists(): array - array of Artist objects
releaseGroups- setReleaseGroups(array $releaseGroups): void
- getReleaseGroups(): array - array of ReleaseGroup objects
releases- setReleases(array $releases): void
- getReleases(): array - array of Release objects