This is good page, great for my students.
But could you please consider removing that dreadful Toccata and Fugue in d minor which for far too long has been gravely misattributed to J S Bach? Instead you could use the piece often nicknamed the "Dorian" Toccata and Fugue, or the Toccata, Adagio and Fugue in C (which are legitimate Bach pieces). The authorship of the organ piece known as the Toccata and Fugue in d minor remains disputed, but the idea that JSB ever wrote that piece is becoming increasingly ludicrous. (by the way, I am an organist, and composer, and have played a lot of Bach). Answer
Thank You for Your important explanation, but this site is not for strong music experts.
And we have to use the wide-known information from the official BWV catalogue and wikipedia.
But we can add the "Dorian" Toccata and Fugue too.