Where should I begin and what steps should I follow to make simple app that fetches data from a website or displays on app?

Where should I begin and what steps should I follow to make simple app that fetches data (music notes of songs) from a website (without api) and then displays in a app (react native) ?

I'm trying to create a simple react native app that will fetch musical notes from a website for songs and display it on the app.

Link to website : http://www.keylessonline.com/list/tamil

I have basic knowledge of HTML,CSS, Javascript ..

But I don't know where to begin now. I found that you need to an API to fetch data...but that website doesn't have an API .

Can you guys help me with what I should be doing and how to proceed.

I'm doing this as my personal project.

I want it to look something like this , but more styled .

TLDR : Basically , I want to create an app that fetches data from the website (or offline, if I have to scrape the data before hand) and displays it on the app.