Final answer:
Modern poetry commonly utilizes free verse, which allows for greater expressiveness and freedom compared to traditional forms. Tone of voice has become increasingly important for conveying authenticity and establishing a connection with the reader. The use of concrete images is also prominent in modern poetry to directly engage the reader's senses.
Step-by-step explanation:
In modern poetry, the use of free verse is more common than in previous poetry. Unlike traditional poetry that followed a strict meter and rhyme scheme, modern poetry often embraces free verse to allow for more expression and flexibility. This trend is part of a broader modernist movement in literature where traditional forms and structures are eschewed in favor of innovation and experimentation.
Poets such as Walt Whitman were instrumental in demonstrating that poetry could be effective and compelling without conforming to standard meter and end-rhyme. The abandonment of these formal structures also meant moving away from the 'trust system'--a consistent set of expectations regarding rhythm and rhyme.
As a result, tone of voice has become a crucial element in modern poetry. It helps to create a sense of authenticity and can establish a connection with the reader. Modern poetry also tends to be less formal and more experimental with form, often using concrete images to convey experiences directly to the reader's senses, rather than relying on abstract concepts.