Berlin [Marienkirche Altar}
In the coming years the Elisabeth-Musiquen project will dedicate itself to a comprehensive study of all 16th, 17th and 18th century sources in the musicological history of the Berlin-Brandenburg area . The long-term goal is to find and catalogue all musiclogically relevant sources in selected regional libraries and archives such as the Brandenburgischen Landeshauptarchiv Potsdam (Brandenburg State Archive), the Evangelischen Zentralarchiv in Berlin (Central Archive of the Protestant Church), the Domstiftsarchiv Brandenburg/Havel (the Cathedral Chapter Archive Brandenburg/Havel) and the Stadtarchiv Frankfurt/Oder (Frankfurt City Archive). It is planned that the results of this research will also be accessible to the public via the Internet in the form of a database collating musical sources in Berlin-Brandenburg up to 1740.
A further aim is the organisation of musicology seminars as a cooperation between the Musicology Department of the Humboldt University in Berlin as well as the publication of the lectures held in these seminars. Another project included in the research work of the Akademie fuer historische Auffuehrungspraxis is the editing and publication of the collection Opus plane novum cantionum ecclesiasticarum (1613) by the Frankfurt composer and director of music at the Church of St. Maria Bartholomaeus Gesius (ca. 1560 - 1613). For today's musically interested public Gesius is little more than the creator of Protestant hymns and the editor of hymn books.
In his lifetime however he was respected as a theoretician and also as a composer of figural music. It is certain that there must be compositional rarities just waiting to be discovered. Even more astounding is that none of his composition cycles are available in new editions especially considering how favourable the access to sources is. Many works were printed in his lifetime and these editions and the copies based upon them have been preserved in various German and foreign libraries. The collection Opus plane novum cantionum ecclesiasticarum includes the two main works of the composer: the Missae ad imitationem cantionum Orlandi (ten satirical masses based on motets of Orlando di Lasso and other composers) which was published in 1611 and the Cantiones sacrae chorales of 1610. Both works were later republished together with another nine masses and a St. Matthew Passion in two volumes under the aforementioned title.