With its highly complex and artful opening chorus, the cantata "Ein feste Burg" is one of the highlights among Bach's cantatas. With the Kammerchor Stuttgart under Frieder Bernius and the soloists Sarah Wegener, David Allsopp, Thomas Hobbs and Peter Harvey, this masterpiece finds a more than adequate recording here. The cantata is supplemented by the Missa brevis in G minor, BWV 235, one of the four Lutheran masses Bach composed at the end of the 1730s. The Kammerchor Stuttgart, which was founded by Frieder Bernius, has gained a reputation as one of the foremost European vocal ensembles, its changing to accomodate the given stylistic requirements. The ensemble has won many international prizes and has made frequent guest appearances in most European radio stations and at festivals. In 1988/89 the schedule of the Kammerchor Stuttgart included concert tours of the Far East, Poland, the USA, Italy, France and the Netherlands. Some 40 albums have been recorded, many of them winning prizes.