Dionysus and Will to Live

Nietzsche is often interpreted as beginning as a follower of Schopenhauer, but eventually turning against him, by Thus Spoke Zarathustra, and, perhaps, as early as Human, All Too Human.  The primary basis for that interpretation  is the enthusiasm for Music in Birth of Tragedy that he shares with his predecessor, which tends to encourage the interpretation that his Dionysian principle is his correlate of Schopenhauer's Will.  However, Dionysus is also the god of fertility, the rites of which are a dimension of the festivals in that name, whereas Schopenhauer's Will is, more precisely, the Will to Live, from which he seeks detachment.  So, not later, but at the very outset, Nietzsche opposes Life-Denial with Life-Affirmation, i. e. repudiates Schopenhauer immediately.