Thus , a musical such as Fiddler on the Roof has a composer -LRB- PERSON@1 -RRB- , a lyricist -LRB- PERSON@2 -RRB- , and the writer of the `` book '' -LRB- PERSON@3 -RRB- .

Sometimes these two are by different authors , e.g. the musical Fiddler on the Roof has a composer -LRB- PERSON@1 -RRB- , a lyricist -LRB- PERSON@2 -RRB- , and the writer of the `` book '' -LRB- PERSON@3 -RRB- .
