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.
The main difference here is that Pandora's data is generated by humans, while the Echo Nest (Spotify) does it automatically. Both approaches have their merits: it's possible that Pandora has higher quality data, but it's certain that the Echo Nest has far more data than Pandora.