The summary of the text is:
- The text is a transcript of a lecture that introduces a performance of Mozart and Mendelssohn's quartets.
- The lecturer compares the structure and style of the quartets to Lewis Carroll's poem "Jabberwocky", which uses nonsense words but has a clear rhyme and meter.
- The lecturer explains how Mozart and Mendelssohn use similar building blocks, such as four-measure lines, rhymes, accelerations, and returns to the main theme, but create different effects of stability and drama.
- The lecturer also relates the musical aesthetics to the historical and artistic contexts of the classical and romantic periods, and shows examples of paintings and architecture that illustrate the contrast between symmetry and motion.
- The lecturer concludes by inviting the audience to enjoy the music and forget about their troubles for a while.
Here are some possible facts extracted from the text:
1. The text is a transcript of a lecture about musical orientation and the classical and romantic styles.
2. The text uses the poem "Jabberwocky" by Lewis Carroll as an analogy for the structure and symmetry of Mozart's quartets.
3. The text compares Mozart's quartets to Mendelssohn's quartet in D major, and shows how Mendelssohn creates drama and motion using the same building blocks as Mozart.
4. The text also relates the musical styles to the aesthetic ideals of the neoclassical and romantic periods in art and architecture, using examples of paintings and buildings.
5. The text ends with an introduction to Mendelssohn's quartet, which the lecturer describes as "wonderful", "beautiful" and "fun".