You need the following tools:

sound pick-up outfit

Audio editing software

The recording device is to record the password you shout, one two three four two three four. Audio editing software combines music with your password.

And there will be a question in the music section here, whether your music is original or written by others.

If you simply combine other people's music with your password, you only need a cool editor.

If you want to do a comprehensive accompaniment like the second set of broadcast gymnastics for middle school students in China, you need software like Nuendo.

If you have used PhotoShop, you will know the word layer. Different patterns are put on each floor and finally combined into a painting. The same is true of doing aerobics music, except that instead of layering, audio tracks are used here.

CoolEdit is also quite simple to use. You can find a detailed tutorial through Baidu search. The key word is cool tutorial, and the content of the tutorial is also very detailed, which can basically meet your needs.

And if you want pure original accompaniment, you have to learn music theory before learning software.