Hayes, Roland. (1887–1977) [Monteux, Pierre. (1875–1964)] Two Typed Letters Signed to MonteuxPair of TLS from the African American lyric tenor to Doris Monteux, his friend and widow of the French conductor, both regarding a 1966 performance for the Pierre Monteux Memorial Foundation. Both letters written from Brookline, MA; 1 p. on personal stationary. Expected mailing folds, light toning, else fine. 7. 25 x 10. 5 inches (18. 4 x 26. 6 cm.). In the first letter (October 11, 1965) Hayes begins by expressing regret that he cannot take a more