Introduction:
Song structures are the blueprints that musicians use to organize their music. Understanding various song structures can help both songwriters and music enthusiasts appreciate the art of composition. In this article, we will delve into some common song structures found in popular music, with examples to illustrate each form.

1. Verse-Chorus Structure:
The verse-chorus structure is perhaps the most widely used form in popular music. In this format, the song alternates between verses and choruses, with the verses advancing the song's narrative and the choruses providing the catchy, memorable hook. An example of this structure can be found in "Shape of You" by Ed Sheeran, where the verses tell a story while the chorus features the infectious hook, "I'm in love with the shape of you."

2. ABAB Structure:
The ABAB structure involves alternating sections of two different melodies or musical ideas. This form is commonly used in folk songs and ballads. A classic example of the ABAB structure can be seen in "Blowin' in the Wind" by Bob Dylan, where the song alternates between questions in the verses and the repeated refrain in the chorus.

3. Verse-Verse-Bridge-Chorus Structure:
This structure introduces a bridge section between two verses and the chorus. The bridge provides a contrast to the rest of the song and often serves as a build-up to the final chorus. A popular song that follows this structure is "Someone Like You" by Adele. The song features heartfelt verses, a powerful bridge, and a memorable chorus that resonates with listeners.

4. AABA Structure:
The AABA structure consists of two contrasting sections followed by a third section that differs from the first two, creating a sense of resolution. This form is commonly found in jazz standards and musical theater songs. An iconic example of the AABA structure is "Somewhere Over the Rainbow" from the movie "The Wizard of Oz." The song features the repeated AABA pattern that gives it a timeless and memorable quality.

5. Through-Composed Structure:
In a through-composed structure, each section of the song is unique, with no repeated sections. This form is often used in art songs and progressive rock music. An example of through-composed structure can be found in "Bohemian Rhapsody" by Queen, where the song transitions seamlessly through different musical styles and sections, creating a complex and epic musical journey.

Conclusion:
Song structures play a crucial role in shaping the overall sound and impact of a song. By understanding different song structures and studying examples from popular music, both aspiring musicians and music lovers can gain a deeper appreciation for the art of songwriting and composition. Whether it's the familiar verse-chorus format or the more complex through-composed structure, each song structure offers a unique way to convey emotions, tell stories, and connect with audiences around the world.