Presentation and Questions of SDL_Mixer For my new game

Hi people , Im Flautarian and i Happy to join in this community , I’m SDL developer and i have a question for my next project.

I want to create a music space invaders , where the enemies appears in a possition that depends of the acute or grave of the music that plays . But i have a problem , i don’t know how to get information like frequency of volume of the music that is playing at the moment. Is possibl do this and transform to int to positionate the enemies in the screen?

Thanks a lot and sorry for my bad english :lol: :smiley: