For seven days, beginning Sunday, Oct. 6. (All times are E.S.T.)
New York Philharmonic (Sun. 3 p.m., CBS). Brahms's Symphony No. 2 in D Major; William Schuman's orchestral suite from Undertow; Artur Rodzinski, conducting.
NBC Symphony (Sun. 5 p.m., NBC). Mozart's Symphony No. 39 in E Flat Major; Villa-Lobos' Bachiana Brasileira, No. 1; Respighi's Fountains of Rome; Wilfred Pelletier, conducting.
Let's Go to the Opera (Sun. 7 p.m., Mutual). Anne McNight, protégée of Arturo Toscanini, and Baritone Todd Duncan sing duets from Mozart's Don Giovanni and Verdi's La Traviata.
Fred Allen (Sun. 8:30 p.m., NBC)....