I have been building up my spaced repetition review for the past 2-3 weeks now and I just counted it out and I am up to 16 songs in the rotation which is kinda crazy to think of. I just added 5 new ones today, I will see if 10 minutes once every 5 days is enough to refresh the new ones or not. But soon I will have it listed on a week schedule, Monday to Sunday!
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From @coriolanus1337