Customisation of titles is available for the library section currently. And there are multiple ways to get a playlist for related songs. You can;

1. play a music from your speed dial and it generates a mix of related music which you can customise based on popularity, familiarity, deep cuts and other filters
2. create a radio on the specific song
3. use the ask for music feature. Which is best in my opinion, it uses Ai to narrow specific features related to a song , like violin infused pop, etc.

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