In early 1729 Bach became director of the so-called &raquo;Schottischen  Collegium  musicum&laquo; a music  organization of students and local citizens. The remarkable results of this  undertaking are the  concertos for harpsichord. Today it is almost certain that practically all of  these concertos were  transcribed from concertos for melody instruments (mostly violin or oboe). This  study score  contains the five concertos for harpsichord and strings, BWV 1052-1056, the  concerto for  harpsichord, two recorders and strings BWV 1057, as well as the concerto BWV  1058 also for  harpsichord and strings based on the violin concerto in A  minor. In addition, with BWV 1052a,  this volume offers another version of the lost violin concert in D minor  arranged by C. P. E.  Bach.<br>