This composer's 1914 work for orchestra and violin uses that solo instrument to represent the titular bird of a George Meredith poem.  
This composer's often performed fourth symphony's fourth movement is entitled Finale con epilogo fugato.  This composer's 1914 work for orchestra and violin uses that solo instrument to represent the titular bird of a George Meredith poem.  The first movement of his eighth symphony in D minor was entitled "seven variations in search of a theme."  He combined a swaying theme with a borrowed hymn in his Fantasia on a Theme by (*) Thomas Tallis, while he set poems from Whitman's Leaves of Grass to music in his Sea Symphony.  For 10 points, name this British composer who borrowed material from his opera Sir John in Love for his song Greensleeves.
This composer's often performed fourth symphony's fourth movement is entitled Finale con epilogo fugato.  
Ralph {Vaughan Williams}