Meaning of "Charlemagne" by Blossoms

"Charlemagne" by Blossoms seems to tell the story of a deep, emotional longing for someone who has left. The repetition of "Hello, hello" creates a sense of longing and desperation, as the narrator expresses their sorrow at the absence of Charlemagne. The use of imagery such as the river always flowing and tears of gold suggests a sense of perpetual sadness and loss. The narrator seems to be grappling with feelings of regret and wishing they could have done more to show their love before Charlemagne left. Overall, the lyrics evoke a sense of melancholy and yearning for a lost connection.