"It took me 29 years to finish that song. That's a typical Jardine move"

In this quote, Al Jardine is reflecting on the time it took him to finish a song. He mentions that it took him 29 years, which is a considerable amount of time. By saying "that's a common Jardine move," he is acknowledging that he has a tendency to take a very long time to end up things. This might be analyzed as a self-deprecating remark, as if he is satirizing himself for being slow or procrastinating. It might also be seen as a statement of perseverance and devotion, as he stuck to the tune for almost 3 years up until it was completed. In general, this quote showcases Jardine's personality and work principles.