Conversation so far:
What are tone poems?
which displays a new kind of virtuosity in its bravura orchestral manner.
What was the name of one of the poems?
Don Juan (1888).
What was the name of another?
Death and Transfiguration (1889), Till Eulenspiegel's Merry Pranks (1895), Thus Spoke Zarathustra (1896), Don Quixote (1897), Ein Heldenleben (1898).
Did he have any more?
Symphonia Domestica (1903) and An Alpine Symphony (1911-1915).
What was one of his orchestral works?
Strauss wrote two early symphonies: Symphony No.
1 (1880) and Symphony No.
2 (1884).
Were his works well received?
One commentator has observed of these works that "no orchestra could exist without his tone poems, written to celebrate the glories of the post-Wagnerian symphony orchestra..
Are there any other interesting aspects about this article?
James Hepokoski notes a shift in Strauss's technique in the tone poems, occurring between 1892 and 1893.
What caused the shift?
It was after this point that Strauss rejected the philosophy of Schopenhauer and began more forcefully critiquing the institution of the symphony and the symphonic poem.

Question: Why was he more critical?
Self-contained rewrite: Why was Richard Strauss more critical of the institution of the symphony and the symphonic poem after rejecting Schopenhauer's philosophy?