15:43 To my understanding, this story actually has it origins with Tortelier, not Rostropovich: During a rehearsal with his son, Tortelier was tuning his sons violin for him, holding it in his lap like a cello. His son remarked that he thought the violin sounded worse when held vertically. That remark was what prompted Tortelier to develop the bent endpin, to emulate the angle of the violin. Tortelier would later convince Rostropovich to adopt the bent endpin.
15:43 To my understanding, this story actually has it origins with Tortelier, not Rostropovich: During a rehearsal with his son, Tortelier was tuning his sons violin for him, holding it in his lap like a cello. His son remarked that he thought the violin sounded worse when held vertically. That remark was what prompted Tortelier to develop the bent endpin, to emulate the angle of the violin. Tortelier would later convince Rostropovich to adopt the bent endpin.
Awesome interview!