How to make this frequency

I am trying to make this frequency 480 - Crown Chakra (15 : 1) (Note=B) [BH3]; Frequency associated with Phosphorous & Zinc (mineral nutrients) (Note=B) [BH]

how do I make note b 15:1??? with this base frequency

You can generate various types of tones at 480 Hz at Generate > Tone… . You are entirely responsible for whatever results any generated tones have on your body, so use at your own risk.