Is Casanovas's "Sonata in F" a Baroque period piece? My teacher said it is, and so I can't play the piece in a very smooth way. Secondly, how to play "Rumba Toccata" in a good way? Thirdly, which one is more difficult, "Prelude in C sharp minor" by S. Heller or "Moment musical in F minor" by Schubert? I am learning the prelude, but my friend said that Schubert's one is lovely.

Just checking the composer's dates Casanovas was a contemporary of Mozart which puts him in the classical period but I don't know the piece and the style may be more baroque.
As for which piece is easier, that is a personal thing. What one person finds relatively easy another might find quite difficult even if they are palying at the same level.
Going for what you like in an exam is good but also be guided by your teacher as to what you play well and what suits your strengths.

I did Heller's Prelude in C# minor for my grade 6. It's a lovely piece.

The sonata in F is Baroque style.

Rumba toccata is a super piece - in my humble opinion. You need really relaxed, flexy wrists and a good feel for that rumba rhythm. I would recommend learning it from memory as it is stuffed with patterns and sequences. Then it's easier to play as it does go quickly and you will spoil the flow if your head is bobbing up and down to read the notes. The scales at the end are simply an octave each of C maj, then Db maj X 2, then the end just repeats going down. Tons of repeating patterns !

I played the schubert one first but I thought that the chords were too large for my small hands. So I changed to Prelude in C# Minor and sticking with it. =]

Due to a mix up by abrsm with regards to my theory exam i cant take my grade 6 for a while.
Soo iv been playing lots of the grade 6 pieces from that book. The heller is gorgeous but the schubert is also really good to play. Its def just personal prference and personal strengths.

With regards to the rumba toccata that is a really fun piece to play but to make it sound good and interesting focus on the dynamics
and getting the accemnts in the right places. =]]
learning most of it by memory is very helpful but quite natural with this piece as its pretty much necessity

good luck =]

I'd say technically the Schubert is more difficult to get one's fingers around; however, the Heller has to be played very quickly (even taking into account the 'slower' metronome mark given at the bottom of the page ), so the difficulty in there wiill come from that. I'm supposed to be learning the Heller but am suffering a bit from lack of motivation with it at the moment as it doesn't have that same appeal to me, personally I prefer the Schubert and the Mendelssohn but am determined to learn something new for the exam. When I actually get around to getting on with learning things for the exam that is .

Regarding the Casanovas, the teaching notes suggest that the style owes more to Dom Scarlatti than to Casanovas' direct contemporaries.

I am playing the Sonata in F which I play with a mixture of short and detached notes and some smooth legato playing. I think I've just about got the right mix now and it sounds great.

The Schubert piece is challenging but fantastic to play. I'm getting there with it.

And have swapped from the Rumba Toccata to the alternatve Valse piece. Its lovely.

I've also thought of playing the alternative piece "Valse". But which is more difficult, "Rumba Toccata" or "Valse"?

I reckon the Valse.
But is it all about what's harder/easier to play?