"Good" is not the best adjective to use. I should have said music of value. Music of value stands the test of time. Some examples would be Pachelbel's Canon, Bach's Jesu Joy of Man's Desiring, Beethoven's Fifth Symphony, Beatle's Yesterday, Brubeck's Take Five, etc. These and thousands of other works will be listened to generations from now. Each genre of music has its "standards" that are timeless. These standards go beyond one's individual tastes like famous works of art and like these works of art they are timeless. Some are not well accepted when they are first performed like Stravinsky's Rite of Spring, because they are ahead of their time, but society has a way of catching up. Anyway that's my story and I'm sticking to it.