J. S. Bach's creativity is so overwhelming his compositions in some genres eclipse his work in others. His glorious choral works, profound organ compositions, and exquisite solo compositions for violin and cello attract the most attention. Volume Seven of Bach Perspectives restores Bach's concertos to their rightful place of honor. Gregory Butler focuses on Bach's Concerto for Harpsichord and Strings in E Major (BWV 1053) as a pastiche created by a process of assemblage of three earlier heterogeneous movements. Pieter Dirksen delves into the source history of the Concerto for Harpsichord and Strings in F Minor (BWV 1056) and concludes it represents a transcription of an earlier violin concerto in G minor. David Schulenberg investigates the generic ambiguity of the concerto in the early eighteenth century and how it diverged from the sonata to become a distinct genre. Completing the volume is Christoph Wolff's examination of the ""Siciliano"" as a slow movement in Bach's concertos and its implications for the source history of his Concerto for Harpsichord and Strings in E Major (BWV 1053).