was established in 2000 and specializes in performing baroque music. It is created by a group of early music enthusiasts and, privately, by a group of friends. This creates an extraordinary, joyful atmosphere during the band's rehearsals and concerts. It is the longest-operating band from Białystok playing old instruments, whose repertoire includes instrumental and vocal-instrumental music by composers such as J.S. Bach, A. Vivaldi, A. Corelli, F. Geminiani, H.I.F. Biber, G.A. Pandolfi Mealli, as well as Polish composers: A. Jarzębski and K. Forster. The band took part in festivals held regularly in Białystok: "Music in the Old Church", "Concerts before the bugle call", "Old Parish Church". He performed with the leading Polish harpsichordist, organist and baroque style expert M. Toporowski. With the Ars Antiqua choir under the direction of prof. Z. Szablewski's band took part in a series of Warsaw concerts entitled: "Masterpieces of a cappella vocal music" and "Pearls of choral music". The artists also collaborated with the outstanding harpsichordist L. Stawarz, with the violinist A. Sapiecha specializing in the performance of early music, and with the outstanding saxophonist P. Baron, performing with him a baroque-jazz arrangement of "The Four Seasons" by A. Vivaldi ("Spring" and " Lato"), as well as with M. Wróblewska, P. Kummer, Ł. Kazanecki, E. Adamczyk (singing), I. Leśniowska-Lubowicz, A. Wolfinger, J. Motulewicz, M. Liweń, P. Borys, P. Nowacki, W. Gierlach, R.G. Przybyła (baroque oboe), P. Książkiewicz (traverso flute), M. Skotnicki (recorder), P. Hulisz, I. Cecocha (baroque trumpet), S. Trojanowski (positive). Musicians have repeatedly provided the musical setting for literary meetings at the Gallery. Sleńdziński family in Białystok. The band members play every day in the Podlasie Opera and Philharmonic Orchestra - European Art Center in Białystok. In 2012, this institution purchased luthier copies of baroque instruments by A. Stradivarius, N. Amati and G. Dal Salo for the ensemble's needs. The premiere concert with these instruments took place on June 10, 2012 at the Branicki Palace in Białystok. In 2013, CONSORT 415, under the musical direction of L. Stawarz, inaugurated the Chamber Stage of the Podlasie Opera and Philharmonic, performing the opera "Pimpinone" by G.Ph. Telemann directed by A. Korytkowska-Mazur (the performance was presented, among others, as part of the 52nd Music Festival in Łańcut and during the inauguration of the new Concert Hall of the Suwałki Cultural Center in September 2013).