These are a lot of the most common keyword tags for promoting your music online. Your keywords should be relevant to your page, otherwise they will not be effective because you won’t attract the audience that you are looking for.
So trying to rank for a vague keyword like pop music won't be very effective at first. A better one would be "new pop music artists in 2018."
You could also consider paying for advertisements if this is something that you can afford, using the same keywords to get the most views possible for your site. YouTube is more likely to recognize you if you have a lot of views.
To get these views, you will need to get the right keywords otherwise no one will discover you. The more views you have, the higher you will appear on the YouTube searches.
Using keywords is just as important as the type of keywords that you use. Keywords should be tagged not just in your video but also should be found in the title, meta description, and the video description.
They should seem natural when you place them in the title or meta description, as this is viewed more favorably. Think about who you are trying to attract to your videos and think about why they want to use your beats. The answer to these questions will be crucial in deciding which combination of keywords that you are going to use on your YouTube videos.