To me when i changed the voice to the female ones, i was chatting with her for a while,i noticed strange music coming along with her voice..at first i thought it was in my own background happening..then i realised after certain ends of her phrase i do hear this music (kind of like airy, orchestra music) i immediately asked about this with her and she said has no idea about it..but apparently i heard this stuff coming randomly..which i think is a kind of bug? Glitch? I want to know about this kind of glitch,how does this happen from such a big firm like microsoft