There are individual music rolls that contain recordings of great music-historical value. Triggered by the discovery of two special Hupfeld music rolls with Kenneth Hamilton After the Golden Age – Romantic Pianism and Modern Performance has written a fantastic book about the performance style of the great pianists and composers from the Romantic period to the modern era. He has studied countless sources and describes in detail the pianists' different approaches and forms of performance. With numerous quotations and anecdotes, the book, written in English, is very lively to read and provides a great deal of insight for a better understanding of the recordings, some of which have been preserved on music rolls.