The chief promoters seem to have been Count Krasinski and the two Prussian officials Mosqua and E.Th.

A.Hoffmann.
In the last named the reader will recognise the famous author of fantastic tales and of no less fantastic musical criticisms, the conductor and composer of operas and other works, &c.

According to his biographer, J.E.Hitzig, Hoffmann did not take much interest in the proceedings of the Musical Ressource (that was the name of the society) till it bought the Mniszech Palace, a large building, which, having been damaged by fire, had to undergo extensive repairs.

Then, indeed, he set to work with a will, planned the arrangement and fitting-up of the rooms, designed and partly painted the decorations--not without freely indulging his disposition for caricature--and when all was ready, on August 3, 1806 (the King of Prussia's birthday), conducted the first concert in the splendid new hall.

The activity of the society was great, and must have been beneficial; for we read that they had every Sunday performances of quartets and other kinds of chamber music, that ladies frequently came forward with pianoforte sonatas, and that when the celebrated violinist Moser, of Berlin, visited Warsaw, he made them acquainted with the finest quartets of Mozart and Haydn.