Posting every day or so in newsfeed. No stories at time of Health Check. Good use of questions in written text. Using some hashtags. Reposting a lot of videos from other accounts.
Love the content. Some really nice fingerstyle videos here. I think ramping up your posts to 4 or 5 per day would really take it to another level if you can sustain that?
Other guitar pages like @guitarsarebetter for example post multiple times per day. It might even be worth sending some of these pages a message to see if you can do a collab and share each other’s content.