 The term " choral symphony " indicates the composer 's intention that the work be symphonic , even with its fusion of narrative or dramatic elements that stems from the inclusion of words . To this end , the words are often treated symphonically to pursue non @-@ narrative ends , by use of frequent repetition of important words and phrases , and the transposing , reordering or omission of passages of the set text . The text often determines the basic symphonic outline , while the orchestra 's role in conveying the musical ideas is similar in importance to that of the chorus and soloists . Even with a symphonic emphasis , a choral symphony is often influenced in musical form and content by an external narrative , even in parts where there is no singing . 
