I also play on the organ every day for an hour, but unfortunately I cannot practise properly, as the pedal is short of five upper notes, so that I cannot play any of Sebastian Bach's passages on it; but the stops are wonderfully beautiful, by the aid of which you can vary chorals; so I dwell with delight on the celestial, liquid tone of the instrument. Moreover, Fanny, I have here discovered the particular stops which ought to be used in Sebastian Bach's "Schmücke dich, O liebe Seele." They seem actually made for this melody, and sound so touching, that a tremor invariably seizes me, when I begin to play it. For the flowing parts I have a flute stop of eight feet, and also a very soft one of four feet, which continually floats above the Choral. You have heard this effect in Berlin; but there is a keyboard for the Choral with nothing but reed stops, so I employ a mellow oboe and a soft clarion (four feet) and a viola; these give the Choral in subdued and touching tones, like distant human voices, singing from the depths of the heart.
Sunday, Monday, and Tuesday, by the time you will have received this letter, I shall be on the "Theresien Wiese," with eighty thousand other people; so think of me there, and farewell.
Pray forgive me for not having written to you for so long. The last few days previous to my concert, were passed in such bustle and confusion, that I really had not a moment's leisure; besides I preferred writing to you after my concert was over, that I might tell you all about it, hence the long interval between this and my former letter.
I write to you in particular to-day, because it is so long since I have had a single line from you; I do beg you will soon write to me, if only to say that you are well, and to send me your kind wishes. You know this always makes me glad and happy; therefore excuse my addressing this letter, with all the little details of my concert, to you. My mother, and sisters, were desirous to hear them, but I was anxious to say how eagerly I hope for a few lines from you. Pray let me have them. It is a long time since you wrote to me!
My concert took place yesterday, and was much more brilliant and successful than I expected. The affair went off well, and with much spirit. The orchestra played admirably, and the receipts for the benefit of the poor will be large. A few days after my former letter, I attended a general rehearsal, where the whole band were assembled, and in addition to the official invitation the orchestra had received, I was obliged to invite them verbally in a polite speech, in the theatre. This, to me, was the most trying part of the whole concert; still I did not object to it, for I really wished to know the sensations of a man who gives a concert, and this ceremony forms part of it. I stationed myself therefore at the prompter's box, and addressed the performers very courteously, who took off their hats, and when my speech was finished, there was a general murmur of assent. On the following day there were upwards of seventy signatures to the circular. Immediately afterwards, I had the pleasure of finding that the chorus singers had sent one of their leaders to me, to ask if I had not composed some chorus that I should like to be sung, in which case, they would all be happy to sing it _gratis_. Although I had decided not to give more than three pieces of my composition, still the offer was very gratifying, and the hearty sympathy especially delighted me, for even the regimental musicians whom I had to engage for the English horns and trumpets, positively refused to accept a single kreuzer, and we had above eighty performers in the orchestra.