The attributes which make up any art are never few. Poetry 18 such things as music is made of: accent, rhythm, tone color, intensity, pitch. Painting is form, color, perspective, composi tion, — just to denote. But in every art one attribute is, if any thing, more indispensable than another. The shiftings of time are, for example, the life and breath of music; they give it its expres sion — they are its vertebra — intensity, the loud, the soft, being an added asset.