Mujitsu and Tairaku's Shakuhachi BBQ

There is a flower shop not too far from where I live. Apart from selling all sorts of flowers they also have a section for bonsai as well as a rather large Japanese-style garden. The place is truly wonderful and it is often really relaxing to go there just for a short walk.

It's roughly a month or so until Hanami, the cherry tree party. They have several cherry trees there and although I doubt they'll run any huge parties or the like, odds are that some people will come over just to watch the event. I figured that if my schedule works out, I want to offer to play in that event in case they don't yet have any other plans. It's a long shot but I figured that only way to succeed is to try.

Because of this I'd like to come up with a couple of pieces that could work in such an event. Sakura is an obvious choice and it can be expanded quite a bit so that it won't be over too quickly if people are coming and going. Other than that I can't really think of any other choices that would obviously fit the mood. I know a handful of pieces that match the general feel of Sakura as well as some which should go nicely with the theme of the party.

Are there any pieces other than Sakura which are commonly played and/or sung during these kinds of events? I have enough time to work on a couple of pieces if they aren't exceedingly difficult. Longer pieces are preferable in case I end up staying there for a while. If there aren't any pieces that are directly related, can you think of any pieces that would fit into such event? Since it's an exotic event to begin with, I'd like to stick to pieces that originate from Japan instead of playing something western even if it fits the mood.