This is it! The original Les Swingle Singers, arranged and conducted by Ward Swingle. Half of this rerelease was from the l963 recording which won a Grammy for "Best Performance by a Chorus." The first Jazz Sebastian Bach was a 1968 album called Bach's Greatest Hits here in the US where Les Swingles won a Grammy in the category "Best New Artist." You'll find over sixty-five minutes of jazz/Bach sung with only the bass and drum (mostly snare) to accentuate rhythm. They became world renown because scat is an understandable language everywhere in it. None of Bach's work has been changed, not a note added or taken away! This is not improvisation (though two pieces were transposed to accommodate vocal range).
For five decades, the unmistakable sound of ‘Swingle singing’ has defined the art form: virtuosic vocal agility and blend demonstrated by their signature close-microphone technique, combined with high-level entertainment that has thrilled audiences around the globe. The Swingle Singers are an international a cappella phenomenon. Since the release of their ground-breaking debut album Jazz Sébastien Bach in 1963, this a cappella group has performed in every continent and on the world’s most famous stages, as well as releasing over 50 recordings and winning five Grammy Awards.
The Swingle Singers offer a variety of shows, from the current a cappella programme entitled "Ferris Wheels" to contemporary opera to light orchestral works. This adaptability across the musical spectrum has resulted in many opportunities for collaboration. The late Luciano Berio was one of the first composers who recognised in the sound an opportunity to explore the combination of amplified voices and acoustic instruments. More recent commissions have been penned by such names as British Jazz legend John Dankworth, Michael Nyman, French composer Pascal Zavaro, and Berio's protege, Azio Corghi.