The result is often a piece that fascinates us because of how the writer moves between conflicting elements. Hybrid writers mix fact and fiction; poetry and prose; memoir and history; biography and memoir.
Echo Reading is a strategy teachers use to model oral reading. The teacher reads a line of a story or passage and the student echoes it using the same phrasing and tone. It helps the student focus on the print and helps the reader to read more fluently.
As a trumpet has a different voice than a tuba or a violin has a different voice than a cello, so the words of one author have a different sound than the words of another. One author may have a voice that is light and fast paced while another may have a dark voice. I actually find the first sentence of that definition rather unhelpful, though I very much like the comparison that follows, likening literary voice to the different sounds of different instruments.