This evening is built on precision, concentration, and a rare inner clarity of Bach's music. Alexander Fiseisky turns to the choral preludes from the "Organ Book," where depth of thought, strict beauty, and subtle emotional work are hidden in small forms, capable of captivating even an unprepared listener. There are programs where the external effect is not important, but rather the degree of internal focus of the music and the listener. This organ evening belongs to such programs. The focus is on Bach's choral preludes from the "Organ Book," a cycle often perceived as a kind of laboratory of compositional thought. Here, in small forms, clarity of line, spiritual concentration, richness of polyphony, and astonishing expressiveness are contained, arising not from loudness, but from precision. For the audience, this is especially valuable because Bach's organ music allows one to hear how a strong emotional impression grows out of a strict structure. In these pieces, there are no random details: each intonation works towards the overall movement, each pause has weight, and each voice is important. The listener can focus on the melody of the chorale, on the intertwining of lines, on how the musical thought unfolds gradually, without pressure and fuss. Such a concert is well-suited for those who want to listen to academic music attentively and thoughtfully, noticing the subtleties that are rarely revealed in more lavish and large-scale programs. The participation of Alexander Fiseisky is of particular significance. His name has long been associated with organ performance, and in such repertoire, style, sense of form, and the ability to maintain a large breath even in miniature are especially important. The performer is required to do much here: not just technical precision, but the ability to show the internal logic of Bach's speech, its strictness, light, and hidden tension.