ABSTRACT
Carlos Santana live in Hamburg, November 1973 https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315669533/6a51a005-19de-4c6c-86eb-c2daa7192811/content/fig11_1_B.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/> Credit: Heinrich Klaffs, www.flickr.com/photos/heiner1947/4484760723. Permission from CC-BY-SA. Entered public domain 2010.
