How do I switch back to karaoke format in "songs"

[LadyOfTheCastle]

Have you read this thread?

Auto play in JustinGuitar app still not working

@Adrienjp We sincerely apologize that this issue remains unresolved. We have followed up with our technical team multiple times and have now escalated the matter again to request a clear timeline for resolution, especially since we were previously informed it would be addressed in the last update. Thank you for your continued patience

There are answers by the app developers in there, explaining how to switch back, and that the karaoke thing is still in trial mode.