contain political, social, and economic themes—as well as aesthetic elements—and so can communicate culturally significant messages. These messages can be explicit, or implied through metaphor or symbolism. Lyrics can also be analyzed with respect to the sense of unity (or lack of unity) it has with its supporting music. Analysis based on tonality and contrast are particular examples. Former Oxford Professor of Poetry Christopher Ricks famously published Dylan's Visions of Sin, an in-depth and characteristically Ricksian analysis of the lyrics of Bob Dylan; Ricks gives the caveat that to have studied the poetry of the lyrics in tandem with the music would have made for a much more complicated critical feat. Search engines Search risk A 2009 report published by McAfee found that, in terms of potential exposure to malware, lyrics-related searches and searches containing the word "free" are the most likely to have risky results from search engines, both in terms of average risk of all results, and maximum risk of any result. Google Beginning in late 2014, Google changed its search results pages to include song lyrics. When users search for a name of a song, Google can now display the lyrics directly in the search results page. When users search for a specific song's lyrics, most results show the lyrics directly through a Google search by using Google Play. See also Lyricist, a writer of lyrics Libretto, the "little book" of an extended musical piece, written by a librettist "singing in the Spirit", vocal improvisation in a spiritual context scat singing & vocalese, vocal improvisation in jazz bol, kouji, beatbox, forms of vocal mimicry or percussion References Further reading External links Poetry