Musical Analysis: Bernstein on Brahms, Symphony No. 4, Op. 98, 1st Movement - Brahms: Musical Analysis: Bernstein on Brahms, Symphony No. 4, Op. 98, 1st Movement: IV. "Now, Think of It - We Have So Far Only Had 44 Bars of Music" (音乐分析：伯恩斯坦指挥，第4号交响曲，作品98 - 第4首 “现在想一想，我们到目前为止只有44小节音乐吧”) (口白)