"Kaleidoscope" is a set of 25 Preludes and Fugues for Piano and for Humankind" (2005), written in memory of inspirational masterpieces by J.S. Bach, Paul Hindemith, Dimitri Shostakovich and Rodion Shchedrin. The work uses folk (not popular!) tunes, folk melodies and folk dances of many different nationalities--Bulgarian, Jewish, Russian, Chinese, etc.--as thematic material many Preludes and Fugues, as well as traditional dance rhythms, such as Polka, Minuet, Gavotte, Mazurka. There is also an instance of a Double Motet, a 13th century musical genre. In certain pieces the audience is asked to participate in the performance, by clapping a rhythm, whistling the tune, etc. This performance is the Massachusetts premiere of the composition. It is also available on 2 CDs (2011). . Prelude in C Major opens the whole composition I named "Kaleidoscope" with a simple and joyful Polka. In the fugue, the use of tonality deviates from the traditional tonic/dominant approach. After the initial introduction of the theme in C Major, "the answer" shifts to D-flat Major, this odd juxtaposition continuing throughout the whole piece. Prelude in A Major is written as a Mazurka, using traditional functional harmony. The 4-voice Fugue is based on a 12-tone theme, uses an intricate rhythmic pattern of 13/8 (3/8+3/8+3/8+4/8), and ends with a "mother of all strettas," followed by unexpectedly simple two final diatonic chords: a dominant resolving to the tonic. Prelude in B Major is dedicated to all four masters. It starts in the left hand, with the quotation of the theme from Paul Hindemith's "Fugue", followed by 4 notes - DSCH - representing Dmitri Shostakovich, while the right hand is playing 6 notes - SHCHED - representing Rodion Shchedrin, with 4 notes - BACH - representing Bach finally appearing in bar 7. The Prelude also ends with a quotation of the theme from Hindemith's "Fugue", mirroring the beginning. The 3-voice Fugue's subject starts attacca (without any pause) with 4 notes - BACH - representing Bach, plus 9 other non-repeated notes. It is a Scherzo; the composer hopes that the piece will, in fact, make the audience smile. This Fugue also ends with 4 notes - BACH - in the left hand. IsraeI Kremen