The track famously samples Johann Sebastian Bach’s "Air on the G String" from Suite No. 3 (1723) throughout the entire song.
It features questions about whether one’s current years are their best or if they have done enough to reach success. AJR - The Good Part (Audio)
You can find various versions of the audio depending on your interest: The track famously samples Johann Sebastian Bach’s "Air
A recurring theme is comparing one's own uncertain path to the seemingly established lives of others, specifically their parents. Audio Variations specifically their parents. Audio Variations