Champion Idea [Would like feedback]

So i love reading through the old champion lore and coming up with ideas and concepts for new champions into the league. but i never share them. so i thought i'd share my ideas this time just to see what the community thinks. So, A champion no one really pays much attention to ( in terms of finer details..and not those finer details ;)) is sona. for those not familiar with sona's Background you can read it here http://leagueoflegends.wikia.com/wiki/Sona/Background.

In the lore it states she has no memories of her parents and was abandoned on the steps of an adoption house. another key thing i would like to point out is that she inability to speak. with Halloween coming up a perfect concept popped into my head! a Siren!. Sirens are creatures usually depicted as a beautiful women who use their voice to lure men to their doom. Now here's where what i came up with comes into play. At birth it was already known that sona would have a beautiful voice, one that would match the beautiful music of her etwahl, Which was an old heirloom her family possesed. Her parents, not being of a rich or royal background were just poor commoners and offered her voice to the sirens of Shadow isles in exchange for riches. Once done the parents fearing they now have a cursed child abandoned her along with the instrument that clung to her. The siren, Pleased with the voice she had received sang the most beautiful songs luring many to their doom within the shadow isles. She then began to crave more Power and departed from the shadow isles to find the body (sona's) from which this voice came and claim her body and abilities for her own. After many months of searching she finally found a clue which would lead her to which she sought. The league of legends

^Thats pretty much the gist of it. i would really appreciate it if you would read it and tell me what you think! would also be excited to see what riot thinks

I'm not into making abilities and ratios and things like that. but i like to explore lore ideas and come up with concepts that could be used to develop champions

and if someone would like to take the concept and make a champion out of it i would love to see one. yay for community projects