from django.db import models

class Song(models.Model):
    song_title = models.CharField(max_length=200)
    release_year = models.CharField(max_length=4)
    duration = models.DurationField(null=True)

    class Meta:
        verbose_name = 'Song'
        verbose_name_plural = 'Songs'

    def __str__(self):
        return self.song_title