The Standard Opera and Concert Guide V1 is a comprehensive book written by George P. Upton, which serves as a guide to operas and concerts. The book is divided into two parts, the first part being a guide to operas and the second part being a guide to concerts. In the first part, the author provides a detailed description of various operas, including their plots, characters, and music. The second part of the book provides a guide to concerts, including...