<https://pastdaily.com/2013/10/04/janis-joplin-live-at-the-concertgebouw-nights-at-the-roundtable-lest-we-forget/#article>
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"Janis Joplin &#8211; Live At The Concertgebouw &#8211; 1969 &#8211; Nights At The Roundtable: Lest We Forget"
<https://pastdaily.com/2013/10/04/janis-joplin-live-at-the-concertgebouw-nights-at-the-roundtable-lest-we-forget/>