1. A Section (Verse 1): This section introduces the main theme of the song, which is a description of the Elf King and his kingdom.
2. B Section (Verse 2): The B section provides contrast to the A section and describes the speaker's encounter with the Elf King and his son. It's more narrative in nature and builds tension
3. A Section (Verse 3): The A section returns, repeating the main theme of the song with variations. This time the mood is more urgent and foreboding.
The overall effect of this song structure is to create a sense of drama and suspense, as the speaker interacts with the Elf King and his son and eventually realizes the danger they pose. The repetitive use of the A section also helps to build a sense of familiarity and nostalgia, which adds to the overall emotional impact of the song.