First, make music people want to hear. Meeting industry-standard quality is a prerequisite for having an actual career. You can get away with it [not meeting quality standards] at high levels when you have dedicated fans.
Just because you have a high-end record with top tier production, mixing, and mastering, does NOT mean that it will perform well if marketed poorly or not at all. Targeted marketing is important. Marketing amazing music to the wrong audience is bad marketing.
Create content that connects with your “character” and hand-deliver to groups, hashtags, pages, etc, that they live in. Interact with people one on one.
e.g. For a politically conscious synth wave project, because of the political bent, we would regularly take footage of world events, use video editing to make them look extremely retro, and then back them with original synth wave music and attach some kind of existential blurb on top. We used memes that said things that our target character profile agreed with. We would write blog-style posts about issues that our audience deals with.
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