That's currently known as "Bach's toccata and fugue in d minor for organ". But some musicologists think that all is wrong in this denomination because the original would be :
- not for organ but for violin ;
- and so not a toccata ;
- not in d minor, but in a minor ;
- and finally…not by Bach !
I don't know who is right but, would it have been originally written for bandoneon by my cat, that it remains nonetheless a highly enjoyable organ piece :-).
It's probably not reasonable to post such a well-know piece, but never mind after all !The registration was chosen for the sheer pleasure to make the big Mac roaring.