From 1961 to 1987 , she was Professor of Clarinet at the Royal College of Music .
Professor was a Professor at the Guildhall School of Music and Drama from 1988 until Professor 's death .
From 1961 to 1987 , she was Professor of Clarinet at the Royal College of Music and she was a Professor at the Guildhall School of Music and Drama from 1988 until her death .