Form refers to the structure of a musical composition or performance, outlining how a song is organized into distinct sections. 

The verse typically features different lyrics each time it appears, though the melody often remains the same. Verses tell the story or develop the song’s theme. The chorus, by contrast, is the part of the song that is repeated multiple times, usually with the same lyrics and melody. It often delivers the main message or emotional core and is designed to be catchy and easy to sing along with.

Together, the verse and chorus create a dynamic balance between variation and repetition, supporting the narrative and emotional structure of a song. One of the most common forms in popular music is verse-chorus form, in which verses alternate with a repeating chorus. The verse develops the narrative or theme, while the chorus delivers the emotional or lyrical core. A well-known example is "California Girls" by The Beach Boys.

The bridge serves as a contrasting section, typically appearing after the second chorus and leading into the final chorus. It provides a break from the repetition of verse and chorus and helps heighten emotional intensity or shift perspective. An example of an effective bridge can be found in "We Are Young" by Fun., where the bridge introduces a dramatic tonal and lyrical shift before returning to the chorus (2:33).

Songs may also include additional sections that frame or enhance the core song structure. An intro sets the tone and mood at the beginning of a song. It can be instrumental or vocal and often introduces the main melody, rhythm, or theme, as heard in the guitar intro of Nirvana’s "Smells Like Teen Spirit." The pre-chorus appears between the verse and chorus, building anticipation with a change in rhythm or harmony. An example can be found in Neil Diamond’s "Sweet Caroline," where the pre-chorus (“Hands, touchin’ hands/ Reachin’ out,/touchin’ me, touchin’ you” at 0:44) ramps up energy before the chorus hits.

The post-chorus follows the chorus and often repeats or reinforces a hook, extending the emotional intensity or catchiness. Rihanna’s "Umbrella" features a memorable post-chorus with the repeated "ella, ella, eh, eh, eh" hook (1:18). An outro closes the song, either by repeating earlier material, introducing a new idea, or fading out. The Beatles’ "Hey Jude" has one of the most famous outros in pop history, with its extended “na-na-na” refrain (3:09).

 Analysis - “Riptide” Song Form

The song "Riptide" by Vance Joy follows a relatively standard pop song structure, utilizing common sections like the verse, pre-chorus, chorus, and bridge, along with repeated choruses at the end to create a strong and memorable conclusion. However, it also includes a less common section, an interlude. An interlude is a short instrumental passage that connects two larger sections of a song. It can offer a moment of pause or reflection, often resetting the listener’s attention before a new section begins. In "Riptide," the interlude consists of a two-bar ukulele solo that separates the second chorus from the bridge.

What follows is a full breakdown of the song form with timestamps:

Intro (0:00 – 0:10)
A brief instrumental introduction led by ukulele, establishing the rhythmic and tonal mood of the song.

Verse 1 (0:10 – 0:29)
Introduces the lyrical content and the storytelling tone of the song.

Pre Chorus (0:30 – 0:39)
Builds energy and tension, leading into the chorus.

Chorus (0:39 – 0:57)
The song’s central hook and emotional high point, featuring a catchy, repeated melody and lyrics.

Verse 2 (0:58 – 1:16)
Continues the narrative introduced in Verse 1 with new lyrics.

Pre-Chorus (1:17 – 1:26)
Repeats the rising tension and melodic setup for the chorus.

Chorus (1:27 – 1:45)
Repetition reinforces the hook and emotional tone.

Interlude (1:45 – 1:50)
A two-bar ukulele solo. This brief instrumental break functions as a palate cleanser before the bridge.

Bridge (1:50 – 2:17)
Provides contrast in both melody and lyrical content. This section typically explores a different perspective or emotional depth.

Chorus (2:18 – 2:36)
Returns to the main hook, grounding the listener after the bridge.

Chorus (2:36 – 2:54)
A second repeat of the chorus continues to drive the song toward its climax.

Chorus (Outro) (2:54 – 3:24)
The final chorus is extended and used as the outro, bringing the song to a close while reinforcing its most memorable material.