By music minds an equal temper know,
Nor swell too high, nor sink too low.
. . . .
Warriors she fires with animated sounds.
Pours balm into the bleeding lover's wounds.
You would never hear any song played twice in the same way. The words were retained, but within a certain frame there was great latitude, and the musician could improvise to his heart's content; and the more the variations and combinations, the greater the musician.
Music is of two kinds: one petty, poor, second-rate, never varying, its base the hundred or so phrasings which all musicians understand, a babbling which is more or less pleasant, the life that most composers live.
Sweet is every sound, Sweeter thy voice, but every sound is sweet; Myriads of rivulets hurrying thro' the lawn, The moans of doves in immemorial elms, And murmuring of innumerable bees.