This piece was first published in 1833 in France, Germany, and England as the first of Chopin's Études Op. 10. for piano. To transcibe it for the organ was not as difficult as supposed. The bass line is very clear and taken to the pedal, almost like in an French Romantic Toccata. The arpeggios with a quite huge tonal range only had to be played one octave lower and some keys underneath the contra C had to be transposed one octave higher (or left away).
Because the dynamic changes in the original score have been too difficult and ineffective using the swell box, I decided to interpret the piece from f-to fff and let the bass line become more and more dominant.
Last not least I have to admit that I recorded the piece slower and increased the tempo a little bit using HW technology :-) It's just an experiment already recorded some time ago - if you like it - enjoy!