[AudioStream] that includes sub-streams and plays them back like a playslit. Return the bpm of the playlist, which can vary depending on the clip being played. Get the stream at playback position index. Set the stream at playback position index. Fade time used when a stream ends, when going to the next one. Streams are expected to have an extra bit of audio after the end to help with fading. If true, the playlist will loop, otherwise the playlist when end when the last stream is played. Shuffle the playlist. Streams are played in random order. Amount of streams in the playlist. Maximum amount of streams supported in the playlist.