In my review for Shantae: Half Genie Hero, I gave a lot of praise to the games musical score and called it the best in the series. Now, if you want to own the soundtrack you can physically own it through the games retail edition dubbed ‘Risky Beats’. This version has a physical CD with most of the games tracks.
However, Jake Kaufman posted the entire soundtrack is up on his Bandcamp page! You listen to the entire soundtrack there or you could instead purchase it for your own personal price.