Tone

 Tone is a literary technique that is a part of composition, which encompasses the attitudes toward the subject and toward the audience implied in a literary work. Tone may be formal, informal, intimate, solemn, somber, playful, serious, ironic, condescending, or many other possible attitudes.

Usage
The tone of a piece of work can be found in many ways. Without tone, a piece of literature would evoke no emotion, and may seem very dull. It would likely be an official document.

In many cases, the tone of a piece of work may change or evolve. Elements of tone include diction, or word choice; syntax, the grammatical arrangement of words in a text for effect; imagery, or vivid appeals to the senses; details, facts

Tone is an element used frequently in poetry to convey feeling and emotion, and set the mood for the work. It is important to note that tone and mood are not the same thing.

Tonal scale
There is also such a thing known as a tonal scale which arranges tones from depressed to overjoyed. The scale can include a variety of types of ironic tones. When writing a paper, tone is very important to identify in order to decide the author's mood and attitude towards the subject. In general, tonal scales verbalize the words that one, as a person, cannot think of.