private void editButton_Click(object sender, EventArgs e)
 {
     if (listBoxTesting.SelectedIndex == -1)
     {
         MessageBox.Show("Please select a song before trying to edit", "Incorrect input", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
     }
     else
     {
         AddSong test = new AddSong(false, (Song)listBoxTesting.SelectedItem, songBook, fileFunctions);
         test.ShowDialog();
         titleLabel.Text = "";
         songBody.Text   = "";
     }
 }
        private void newSongToolStripMenuItem_Click(object sender, EventArgs e)
        {
            AddSong test = new AddSong(true, null, songBook, fileFunctions);

            test.ShowDialog();
        }