THIS WEEKEND, ON June 1 and 2, the Houston Symphony celebrates the work of Richard Strauss with a concert of two very different works: An Alpine Symphony (Eine Alpensinfonie), an epic tone poem completed by Strauss in 1915 that depicts a dawn-to-dusk Alpine mountain ascent and includes subtle references to the music of his close friend Gustav Mahler, who died in 1911; and Four Last Songs, which Strauss completed in 1948 at age 84 and was destined to be the composer’s final completed work. HGO Studio alum Rachel Willis-Sørensen, now one of the world’s most in-demand operatic sopranos, joins Music Director Juraj Valčuha for a performance of these majestic, sublime compositions for voice and orchestra.