"This excellent and substantial book will be essential for the collections of reference libraries and specialists, while anyone with an interest in Bach could use some of its content via judicious use of the index to take them to such topics as specific works, centres, or associates of Bach. All in all, this research companion represents a fine achievement." — Robert Manning, The Consort Early Music Journal, vol.74, Summer 2018"... marks a new milestone in Bach research.... [These] twenty articles... are refreshingly multifacted, reflecting their authors' scholarly background, nationality and academic perspective. At the sam time, the quality of the scholarship binds these articles together. Scholars, librarians and inquisitive music students will find this a compelling read." — Zoltán Szabó, Eighteenth-Century Music, Volume 15 Issue 2