Abstract: Systems and methods for interactive live video streaming in accordance with embodiments of the invention are illustrated. One embodiment includes an interaction encoder for transmitting interactive live video streams, including a processor, and a memory, containing an interaction encoding application, where the interaction encoding application directs the processor to obtain media data comprising a video track, receive a request to generate an interaction object in the video track at a given timestamp of the video stream, generate interaction data based on the request, where the interaction data includes a data structure capable of being decoded in near-real time to produce the interaction object in the video track at the timestamp when played back, and transmit the interaction data to an interaction decoder.

Abstract: Musical accompaniment is provided in different musical styles to the playing of an instrument, upon selection of one of the styles. A preferred tempo rate, or a range of acceptable tempo rates, are provided in response to selection of the musical style, causing the accompaniment to be sounded at or near a musically correct tempo in all cases. In one embodiment, a preferred tempo rate and a range of acceptable deviation from that rate are provided for each style, causing the accompaniment to be played at the preferred rate unless altered within the acceptable range by a performer.