Rhapsody, Op. 1 was written by a composer. This composer was English, not the man who arranged The Beggar's Opera.
Bla Viktor Jnos Bartk ( ; ] ; 25 March 1881  26 September 1945) was a Hungarian composer, pianist and an ethnomusicologist. 
Johann Christoph Pepusch (1667  20 July 1752), also known as John Christopher Pepusch and Dr Pepusch, was a German-born composer who spent most of his working life in England. 
 1, Sz. 
The Beggar's Opera is a ballad opera in three acts written in 1728 by John Gay with music arranged by Johann Christoph Pepusch. 
