private var native: nullable AVAudioPlayer is lazy do

		# Find file
		var ns_path = ("assets"/path).to_nsstring
		var url_in_bundle = asset_url(ns_path)
		if url_in_bundle.address_is_null then
			self.error = new Error("Sound at '{path}' not found")
			return null
		end

		var player = new AVAudioPlayer.contents_of(url_in_bundle)
		# TODO set delegate to get further errors
		if player.address_is_null then
			self.error = new Error("Sound at '{path}' failed to load")
			return null
		end

		player.prepare_to_play

		return player
	end