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Once you own bitcoin wallet or other crypto currency, thinking of how long you can maintain your wallet follows this steps,
First send your seed phase or private keys to your emails, also use them to compose a little song only can listen anytime, write it down in your diaries, and makes sure have a google doc to save your wallet keys and other information.
Op are you for real? Please tell me you're just pulling our legs.
It's never a good idea to save your private key in any software that has anything to do with the internet since it makes it more vulnerable to hacking, and that includes your email address. I believe I saw a discussion where the user proposed integrating his/her secret phrases in a song, and I doubt he'll stick with that concept considering all the comments he received from forum members.
Op I will not advise anyone to use any of your methods of keeping secret phrase/private key. You should also bear in mind that your secret phrase is not an asset that loses worth over time if not repolished, and you do not need to continuously check on them. You can just follow the standard procedure of "writing them on different paper (preferably metal sheet) and storing them in different safe locations."