We present an application allowing an interactive virtualization of audio scenes, e.g. concert situations. It enables the user to navigate through the virtual scene inside a common web browser. The user thereby controls the position and the head orientation of the virtual listener. Audio signals are spatialized in realtime using a virtual Ambisonics approach for binaural headphone rendering. The scenes are generated automatically using a simple text file. Flexible parameters such as Ambisonics order, image source order and HRTF set are used to adjust the application during runtime.