I'm not entirely sure but I think the ballades are at a far higher level than fantasie impromptu (that's not to say that it's easy) - even the easiest (no3) looks pretty tough to me, altough I wouldn't take my word for it - I haven't actually played any of these pieces. It seems common for people who have played the fantasie impromptu (the one in c# minor - is that the only one?) to say that it was in fact much easier than they thought it was gunna be, the main problem is the differing rhythms in both hands but once it clicks I think that should be okCertainly if you can play those Beethoven sonatas it should be okDave