The Importance of Second Languages

I think it's such a beautiful way to conceptualize also things like reading music or coding or mathematics as also languages. All of these are forms of language because they all symbol existent that use symbols to transmit information across time and space. So I have concept of an idea in my mind or sound and I encoded either through words if I talk to your mathematical notations in math or a musical note. But then again you know I study language and there is this in English saying that when you have a hammer everything looks like a nail so to me I see language and communication in many other forms. It really comes down to even what is language in this broader sense and it's not universally agreed