Above: Joan Baez talks about her life and early years of her career in this preview for PBS&rsquo;s American Masters documentary, &amp;#8220;Joan Baez: How Sweet The Sound,&amp;#8221; which originally aired Oct. 14, 2009. It has been 51 years since Joan Baez recorded her first solo album. In the decades that have ensued, this award-winning singer [...]