Head pose mixing of audio files

A wearable device comprising: non-transitory memory configured to store an audio file comprising a plurality of stem tracks, with each stem track representing different audio content of the audio file; a sensor configured to provide information usable in determining a pose of a user of the wearable device; a display configured to present images to an eye of the user of the wearable device; a speaker configured to present sounds to the user of the wearable device; and a processor in communication with the non-transitory memory, the sensor, the speaker, and the display, the processor programmed with executable instructions to: determine the pose of the user; determine a relative location of the user in a three dimensional (3D) environment with reference to one or more virtual sound sources associated with corresponding one or more audible regions; wherein an audible region comprises a region of the 3D environment in which the user can perceive one or more stem tracks of the plurality of stem tracks of the audio file through the speaker; select one or more audible regions associated with the determined relative location of the user; select one or more stem tracks of the plurality of stem tracks of the audio file associated with the selected one or more audible regions; generate audio data of the one or more selected stem tracks of the plurality of stem tracks; and communicate an audio signal representative of the audio data to the speaker.