The central question of music to-day to Mr. Henderson is, "How far can music go in the direction of depicting things which lie outside itself?" Programme music is no new thing-the question is, how far can it go? Can we accept Strauss's attempt "to put into music the sensuality of a libertine, his final satiety, his utter coldness of heart," as in Don Juan, or his effort to "portray with an orchestra the horrors of dissolution, the gasps, the struggles,...