fields.cs

if (changedProps.Contains("Status"))
{
    await _db.Country_Songs.Where(i => i.SongId == instance.Id)
        .UpdateAsync(i => new Country_Songs() { Status = instance.Status });
}

if (changedProps.Contains("Field1"))
{
    await _db.Country_Songs.Where(i => i.SongId == instance.Id)
        .UpdateAsync(i => new Country_Songs() { Field1 = instance.Field1 });
}

if (changedProps.Contains("Status") || changedProps.Contains("Field1"))
{
    await _db.Country_Songs.Where(i => i.SongId == instance.Id)
        .UpdateAsync(i => new Country_Songs() { Status = instance.Status, Field1 = instance.Field1 });
}