Hi there @tb2284,
Thank you for reaching out here in the Community.
The queue shouldn't have a time limit but it might disappear when you close the app. A playlist is the best way to make sure that you don't lose your selection
You can also use the history tab to keep track of the progress.
Let us know if we can help you with anything else 🙂
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Live, love, laugh and listen to music 🙂