David Charles Abell is recognised as an authoritative interpreter of the musicals of a composer that has won how many Tony Awards?
David Charles Abell:  Known for his television appearances worldwide as conductor of the "Les Misérables" and Anniversary concerts, he is recognised as an authoritative interpreter of the musicals of Stephen Sondheim. Stephen Sondheim:  Sondheim has received an Academy Award, eight Tony Awards (more than any other composer, including a Special Tony Award for Lifetime Achievement in the Theatre), eight Grammy Awards, a Pulitzer Prize, a Laurence Olivier Award, and a 2015 Presidential Medal of Freedom.
eight