When hearing the Double Concerto by Johannes Brahms, you almost have to consider the violin and cello not as separate instruments, but as a single, super instrument – much of this music would not make sense, or even be possible, by either string player alone. It’s our Evening Masterwork: theDouble Concerto for violin and cello by Brahms, tonight at 7 on Classical WSMR 89.1 and 103.9.