Changes

backend/Musify.Domain/Entities/ExternalTrack.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+using Musify.Domain.ValueObjects;
+
+namespace Musify.Domain.Entities
+{
+    public class ExternalTrack : Track
+    {
+        [Required]
+        public required TrackSource Source { get; set; }
+
+        [Required]
+        [MaxLength(64)]
+        public required string ExternalId { get; set; }
+
+        public ICollection<TrackArtist> TrackArtists { get; set; } = new List<TrackArtist>();
+    }
+}