a number of different tunes (this is particularly common with hymns and ballads). Possible classifications proliferate (under anthem, ballad, blues, carol, folk song, hymn, libretto, lied, lullaby, march, praise song, round, spiritual). Nursery rhymes may be songs, or doggerel: the term doesn't imply a distinction. The ghazal is a sung form that is considered primarily poetic. See also rapping, roots of hip hop music. Analogously, verse drama might normally be judged (at its best) as poetry, but not consisting of poems (see dramatic verse). In Baroque music, melodies and their lyrics were prose. Rather than paired lines they consist of rhetorical sentences or paragraphs consisting of an opening gesture, an amplification (often featuring sequence), and a close (featuring a cadence); in German Vordersatz-Fortspinnung-Epilog. For example: When I was a child, [opening gesture] I spoke as a child, [amplification...] I understood as a child, [...] I thought as a child; [...] But when I became a man, I put away childish things. [close] - 1 Corinthians 13:11 Shifter In the lyrics of popular music a "shifter" is a word, often a pronoun, "where reference varies according to who is speaking, when and where", such as "I", "you", "my", "our". For example, who is the "my" of "My Generation"? Copyright and royalties See Royalties , there are many websites featuring song lyrics. This offering, however, is controversial, since some sites include copyrighted lyrics offered without the holder's permission. The U.S. Music Publishers Association (MPA), which represents sheet music companies, launched a legal campaign against such websites in December 2005. The MPA's president, Lauren Keiser, said the free lyrics web sites are "completely illegal" and wanted some website operators jailed. Lyrics licenses could be obtained worldwide through one of the two aggregators: LyricFind and Musixmatch. The first company to provide licensed lyrics was Yahoo!, quickly followed by MetroLyrics. Several lyric websites are providing licensed lyrics, such as SongMeanings and LyricWiki (defunct as of 2020). Many competing lyrics web sites are still offering unlicensed content, causing challenges around the legality and accuracy of lyrics. In an attempt to crack down unlicensed lyrics web sites, a U.S. federal court has ordered LiveUniverse, a network of websites run by MySpace co-founder Brad Greenspan, to cease operating four sites offering unlicensed song lyrics. Academic study Lyrics can be studied from an academic perspective. For example, some lyrics can be considered a form of social commentary. Lyrics often