WP_Widget_Media_Audio::render_media( array $instance )

101	public function render_media( $instance ) {102		$instance   = array_merge( wp_list_pluck( $this->get_instance_schema(), 'default' ), $instance );103		$attachment = null;104 105		if ( $this->is_attachment_with_mime_type( $instance['attachment_id'], $this->widget_options['mime_type'] ) ) {106			$attachment = get_post( $instance['attachment_id'] );107		}108 109		if ( $attachment ) {110			$src = wp_get_attachment_url( $attachment->ID );111		} else {112			$src = $instance['url'];113		}114 115		echo wp_audio_shortcode(116			array_merge(117				$instance,118				compact( 'src' )119			)120		);121	}