Regula Mühlemann, born in Adligenswil (near Luzern) in 1986, studied with Barbara Locher at the Music College in Luzern. Subsequent to her initial operatic experiences at the Luzern Theatre, further engagements took the young soprano to the Teatro La Fenice in Venice, the Opera House in Zurich and the Festspielhaus in Baden-Baden. In summer 2012, she gave her debut performance at the Salzburg Festival. Today, Regula Mühlemann continues to enjoy a busy concert schedule. She has already guested at numerous major international opera houses and concert halls, performing many standard works from Baroque right through to Contemporary repertoire.

During the 2016/17 season, after a concert tour with the Verbier Festival Chamber Orchestra, Regula Mühlemann gave her debuts at the Tonhalle in Zurich, in the Frauenkirche in Dresden and with the Chicago Symphony Orchestra in the USA with Manfred Honeck conducting. She has also featured regularly at the Lucerne Festival. This much sought-after singer has worked with such renowned conductors as Sir Simon Rattle and Daniel Harding. She has also featured in several opera film adaptations, for example as Ännchen in Weber’s ›Der Freischütz‹. Alongside her opera work, Regula Mühlemann also devotes much of her time to lieder recitals and has amassed significant experience with such accompanists as Tatiana Korsunskaya and Helmut Deutsch. She is an exclusive artist for Sony Classical. Alongside many other awards and scholarships, Regula Mühlemann was awarded the ›German Record Critics’ Award‹ in February 2017.

Arttu Kataja began his musical education with oboe lessons at the age of nine and later studied singing at the Sibelius Academy in Helsinki. Since 2006, this baritone has been a permanent ensemble member of the Staatsoper Unter den Linden Berlin, where he has worked with conductors such as Daniel Barenboim, Gustavo Dudamel, Andris Nelsons, Sir Simon Rattle, Omer Meir Wellber and many others, singing roles such as Papageno (›Die Zauberflöte‹), Peter Besenbinder (›Hänsel und Gretel‹), Marcello in ›La Bohème‹ and many more. In addition, guest performances have taken him to many international theatres from Vienna to Santiago de Chile. This Finnish performer is also in great demand as a recitalist and Lieder singer.

In recent years, Arttu Kataja has also toured the world as Count Almaviva in a semi-concertante version of ›Le Nozze di Figaro‹ with the Freiburg Baroque Orchestra. Other concert highlights included Handel’s ›Messiah‹ conducted by Michael Sanderling at the Dresden Philharmonie. In the 2021/22 season, Arttu Kataja performed Sibelius‘ ›Kullervo‹ at the Sibelius Festival and also at the Concertgebouw Amsterdam.  At his home in Berlin, the singer took part in the world premiere of Peter Eötvös‘ opera ballad ›Sleepless‹, a production that he also premiered at the Grand Théâtre Genève in spring 2022 and which was named ›World Premiere of the Year‹ by Opernwelt magazine.

Hans-Christoph Rademann is a immensely versatile artist with an extensive repertoire. Conductor and choral sound specialist, he devotes himself to Early Music as passionately as he does Contemporary Music. Born in Dresden in 1965, he grew up in the Erzgebirge where he was greatly influenced by the cantorial heritage and the musical tradition of central Germany. He studied Choral and Orchestral Conducting at the Music College Dresden, founding the Dresden Chamber Choir while still a student and, through his continued direction, has moulded it into the world-class ensemble it is today.

Between 1999 and 2004, Hans-Christoph Rademann was Chief Conductor of the NDR Choir and from 2007 until 2015, Chief Conductor of the RIAS Chamber Choir. He has been Director of the International Bach Academy Stuttgart and its own Gaechinger Cantorey since 2013. In addition, the conductor also makes regular appearances as Guest Conductor with international and prestigious ensembles such as the Freiburg Baroque Orchestra, The Academy of Ancient Music, the Rotterdam Philharmonic or the Staatskapelle Dresden. Many of his CD recordings are considered ground-breaking. Hans-Christoph Rademann has received many awards for his artistic work including the ›German Record Critics’ Award‹, the ›Grand Prix du Disque‹ and the Diapason d’or‹. He is Professor for Choir Conducting at the Carl Maria von Weber Music College in Dresden and also Artistic Director of the Erzgebirge Music Festival.

Werner Güra grew up in Munich and, after completing his studies at the Mozarteum in Salzburg, continued his vocal training with Kurt Widmer in Basel, Margreet Honig in Amsterdam and with Wessela Zlateva in Vienna. Today, he is regarded as a master of his craft and is valued worldwide as a lieder and oratorio singer. After several early engagements in Frankfurt and Basel, Güra became a member of the Semper Opera Ensemble in Dresden in 1995, where he has performed major roles in several Mozart and Rossini operas. He has also performed at the Berlin State Opera with the conductor Daniel Barenboim, has guested at the Opera National de Paris as well as at the Innsbruck Early Music Festival and has sung the role of Don Ottavio at the Baden-Baden Festival with conductor René Jacobs.

Equally at home on the concert stage and in oratorios, Werner Güra has performed in many of the major European concert halls with renowned orchestras such as the Berlin Philharmonic, the Gewandhaus Orchestra Leipzig, the Vienna Philharmonic and the London Philharmonic Orchestra, with Riccardo Chailly, Daniel Harding or Sir Roger Norrington conducting. He has also featured in a concert tour of Japan with Nikolaus Harnoncourt. As a lieder singer, Werner Güra has performed at London’s Wigmore Hall, in the Amsterdam Concertgebouw, at the Lucerne Festival, at the Lincoln Center in New York and has performed in several Schubertiade in Schwarzenberg and Barcelona. He has received both the Diapason d’or and an ECHO Prize for his CD recordings and has been teaching Singing at the Music College in Zurich since 2009.

Founded by Helmuth Rilling in 1954, the Gächinger Kantorei has enjoyed the sponsorship of the International Bach Academy Stuttgart since 1981 and is today considered one of the world’s most outstanding concert choirs. During its long history which spans more than 60 years, the choir has performed hundreds of concerts, made countless guest appearances, Radio and CD recordings and can lay claim to inestimable influence through its various notable credentials, for example its collaborations with renowned guest conductors and orchestras, including Masaaki Suzuki, Krzysztof Penderecki and Sir Roger Norrington as well as the Vienna Philharmonic, the New York Philharmonic and the Israel Philharmonic.

During the 2016/17 season, the Bach Academy’s vocal and instrumental ensembles underwent a fundamental change and have since been performing under the one shared name of ›Gaechinger Cantorey‹. The deliberately archaic spelling unites the choir – which Academy Director Hans-Christoph Rademann has been gradually reforming since his appointment in 2013 – with the newly-formed Baroque orchestra. Based on the historical traditions of the Bach era and with its roots in live performance history, the Gaechinger Cantorey stands for a holistic musical approach and the aesthetic sound-ideal of the Baroque. This authentic sound is achieved today through the use of Baroque instruments and musicians who are experts in Baroque performance practices, as well as choirs whose singers are as talented as ›Ripienists‹ (ensemble singers) as they are ›Concertistas‹ (soloists).