updated the models. Some don't work

Neptune_Sy_music/about/migrations/0004_auto_20230221_2219.py

+# Generated by Django 3.2 on 2023-02-21 14:19
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('about', '0003_auto_20230217_0005'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='album',
+            name='album_name',
+        ),
+        migrations.RemoveField(
+            model_name='album',
+            name='artist',
+        ),
+        migrations.RemoveField(
+            model_name='album',
+            name='description',
+        ),
+        migrations.RemoveField(
+            model_name='album',
+            name='release_date',
+        ),
+        migrations.RemoveField(
+            model_name='artist',
+            name='artist_name',
+        ),
+        migrations.RemoveField(
+            model_name='artist',
+            name='monthly_listeners',
+        ),
+        migrations.RemoveField(
+            model_name='song',
+            name='album',
+        ),
+        migrations.RemoveField(
+            model_name='song',
+            name='artist',
+        ),
+        migrations.RemoveField(
+            model_name='song',
+            name='song_length',
+        ),
+        migrations.RemoveField(
+            model_name='song',
+            name='song_title',
+        ),
+        migrations.AddField(
+            model_name='album',
+            name='label',
+            field=models.CharField(default=django.utils.timezone.now, max_length=50, unique=True),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='album',
+            name='song_count',
+            field=models.IntegerField(default=django.utils.timezone.now),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='artist',
+            name='bio',
+            field=models.TextField(default=django.utils.timezone.now),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='artist',
+            name='birth_name',
+            field=models.CharField(default=django.utils.timezone.now, max_length=50, unique=True),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='song',
+            name='lyrics',
+            field=models.TextField(default=django.utils.timezone.now),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='song',
+            name='music_video',
+            field=models.BooleanField(default=django.utils.timezone.now),
+            preserve_default=False,
+        ),
+    ]

Neptune_Sy_music/about/models.py

@@ -3,31 +3,17 @@ from django.db import models
 
 
 class Artist(models.Model):
-    artist_name = models.CharField(max_length=50, unique=True)
-    monthly_listeners = models.IntegerField()
+    birth_name = models.CharField(max_length=50, unique=True)	
+    bio = models.TextField()
     pass
 
 
 class Album(models.Model):
-    album_name = models.CharField(max_length=50, unique=True)
-    artist = models.ForeignKey(
-        Artist,
-        on_delete=models.CASCADE,
-    )
-    description = models.CharField(max_length=500, unique=True)
-    release_date = models.DateField()
-    pass
+    label = models.CharField(max_length=50, unique=True)
+    song_count = models.IntegerField()
+    
 
 
 class Song(models.Model):
-    song_title = models.CharField(max_length=50)
-    artist = models.ForeignKey(
-        Artist,
-        on_delete=models.CASCADE,
-        related_name='single'
-    )
-    album = models.ForeignKey(
-        Album,
-        on_delete=models.CASCADE,
-    )
-    song_length = models.TimeField()
+    music_video = models.BooleanField()
+    lyrics = models.TextField()