The other day we were driving and my daughter was just floored because she realized that there were very few songs that came on that I didn't know the words too. Yes, I am a regular Celine Dion of the car variety...I could peel paint off walls with this less than magnificent voice, but I LOVE to sing, so I do. Anyhow, Michaela says "Well Mom, I learned that the human brain can only remember the lyrics to 250 songs. But Mom, you know something like a million songs". I laughed. My recall for lyrics is stellar, even if the melodic tone of my singing is NOT.
I have been looking for a source online to list what the recall for songs is for the average person, but alas, it appears that the human brain is a funny thing. It's memory potential is indefinite. Just when I thought I finally found my super human power. Oh well. I shall keep searching. :)