Hassan Rahmani started piano at 10 and has been composing for 17 years, releasing as Rahmanzbeatz. There is no team behind him. He records the beats, mixes the tracks, builds the artwork, and runs the promotion himself, which is how most independent producers operate and why most of them look it. His view is that you get one shot at a first impression, and blurry cover art or a plain flyer tells people everything before they hear a note. For him, the visuals are not decoration on the music. They are the thing that gets anyone to press play.
So he treats them as part of the release. He builds short videos in PosterMyWall and drops his own audio over them, which turns a track into something people can actually watch and share. He names YouTube as where the longer pieces and new releases belong, with Facebook, Instagram, and the streaming platforms each pulling a different slice of the audience. Rather than rebuilding a design for every one, he duplicates it and resizes. One cover, one set of promo assets, every platform served without starting over five times.
You can run a channel the same way. Build the artwork with YouTube thumbnail templates, set the channel up properly with channel art, and cut vertical clips from the same release using YouTube Shorts templates. Add AI Subtitles so the clips land for people watching on mute. Then queue the lot with the YouTube scheduler and plan the run in the Content Planner.