- pack_start (soundcloud_upload_button, false, false, 0);
+
+ Gtk::HBox *hbox = Gtk::manage (new Gtk::HBox());
+ hbox->set_spacing (6);
+ hbox->pack_start (soundcloud_upload_button, false, false, 0);
+ hbox->pack_start (analysis_button, false, false, 0);
+ pack_start (*hbox, false, false, 0);