In music, the dynamics of a piece is the variation in loudness between notes or phrases. #Dynamics are indicated by specific musical notation, often in some detail. Wikipedia #musicProduction
#Songstructure The foundation of popular music is the "verse" and "chorus" structure. More advanced writers use a simple "verse, hook, verse, hook, bridge, hook" method. "Pop and rock songs nearly always have both a verse and a chorus. The primary difference between the two is that when the music of the verse returns, it is almost always given a new set of lyrics, whereas the chorus usually retains the same set of lyrics every time its music appears."[2] Both are essential elements, with the verse usually played first (exceptions abound, of course, with "She Loves You" by The Beatles being an early example in the rock music genre).
Each verse usually employs the same melody (possibly with some slight modifications), while the lyrics usually change for each verse. The chorus (or "refrain") usually consists of a melodic and lyrical phrase that repeats. Pop songs may have an introduction and coda ("tag"), but these elements are not essential to the identity of most songs. Pop songs often connect the verse and chorus via a bridge, which as its name suggests, is a section that connects the verse and chorus at one or more points in the song.
The verse and chorus are usually repeated throughout a song, while the intro, bridge, and coda (also called an "outro") are usually only used once. Some pop songs may have a solo section, particularly in rock or blues-influenced pop. During the solo section, one or more instruments play a melodic line which may be the melody used by the singer, or, in blues or jazz an improvised line.weki
