Should I do long videos in a separate channel?

I started uploading contents in youtube a week ago. I would say it was a success since I got a total of 16k views for the week. My niche is music where I highlight vocals of singers.

Now, I'm planning to do long videos and what I wanna do is make beats/instrumentals since I do this for years now. Should I do this on the same channel? I'm having doubts because although they're both music related it's also very different. Any advice?