Retroccata and Fuga in D minor - Toccata und fuge in D moll

J-S Bach's famous toccata 100% rewritten by a French composer and performed on Pibrac church's wonderful organ (This music uses the virtual version of this organ). Score available at : http://www.lulu.com/content/livre-%c3%a0-couverture-souple/retroccata-in-d-minor/8281736 MP3 /Partition / PDF sheet music : www.organ.monespace.net This music is close to the original, but nothing is identical. I try to explain how I proceed to compose. Each time it is possible, I write my music in the reverse mode (backward). I do it measure by measures or several bars at the same time. If a bar has approximately the same notes, my notes do not remain in the same order. If a sequence of notes is the same, my movement is changed like a vertical or horizontal mirror. If chords, cadences must be at the same position, the harmony is changed. All harmonic marches are different. The thema of the fugue is very close, of course, but I did not wanted to do otherwise. Like Bach, this thema is build on two chords only, and doesn't change a lot when you read it backwatd. So my subject may sound very similar, but it is not. I allways checked my notes so as to never write the same thing than Bach. Do you know, I have spent 18 hours on my computer to compose this music and about 6 hours on my keyboard to test each passage (and I compose very quickly). What is exactly the same than Bach's toccata are the number of bars, the Key signature, the places and the voices where the subject or counter subject enter, the positions where the registration change, the tempi variations. If you find a whole bar, or only half a bar identical to Bach's work, please tell me where. The score is available in the Monster Organ Book : http://www.lulu.com/content/6658293