I did not know about this set and have never heard any of the pieces. Just now listened to the no.5 'homage to Chopin'. First off - Wow, that was played very well! Sounds hard! And it's pretty neat - can definitely hear Chopinesque-like etudes in there. I like when composers do this kind of thing.
Thanks ! I would have expected this title to intrigue you.
Actually I think it's no.5 I like least of this set, Grieg trying to emulate Chopin and not quite getting there - even though it's not a bad piece in its own right. It's not quite that hard if you can get the LH rhythm to be consistent, which I am not sure I am fully achieving. And I go a little overboard in the climax of the middle section.