Copy and paste the names of the recommended songs into Spotify. Add them to the playlist and rename it.
Explore the artist's other songs on Spotify and add the better-sounding ones to the playlist.
Add a few more related songs to the playlist. Grab some more recommendations from harmix.ai.
On your Spotify playlist, look at the "Recommended" section based on the playlist and play the suggested songs.
Play those songs by clicking on the song icons. If you like a song, click the "ADD" button to add it to your playlist. You can just click on the play button on the song icons quickly to demonstrate many recommended songs in a short time. If you want more,
Click the refresh button at the bottom of the recommended list to get more suggestions.
Repeat the process: find songs on harmix, copy their names to Spotify, and create a deeper playlist.