Draper was also a notable teacher , teaching at the Royal College of Music , Trinity College of Music , and Guildhall School of Music & Drama , and counting Frederick Thurston among his students .
Stanford 's Clarinet Sonata was also dedicated to Draper .
Draper was also a notable Draper , teaching at the Royal College of Music , Trinity College of Music , and Guildhall School of Music & Drama , and counting Frederick Thurston among Draper 's students .
Stanford 's Clarinet Sonata was also dedicated to Draper .