add GtkCellRenderer

static void
add_button_clicked_cb (GtkButton *button, gpointer builder)
{
    GObject *tree_view;
    GtkTreeModel *model;
    GtkTreeViewColumn *col;
    GtkTreeIter iter;
    GtkCellRenderer *cell;

    tree_view = gtk_builder_get_object (builder, "song-list-view");
    model = gtk_tree_view_get_model (GTK_TREE_VIEW (tree_view));
    cell = gtk_cell_renderer_text_new ();
    col = gtk_tree_view_get_column (GTK_TREE_VIEW (tree_view), 0);
    g_object_set (cell, "editable", TRUE, NULL);
    //gtk_tree_model_get_iter_first (model, &iter);
    //gtk_list_store_append (GTK_LIST_STORE (model), &iter);
    gtk_tree_view_column_pack_end (col, cell, TRUE);
    gtk_tree_view_column_focus_cell (col, cell);
    //gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell), NULL);
}