I have'nt the SD1+, and I can't contact my friend now for the sound folder !
But I'm sure that someone in this folder can send me the sound folder of the SD1Plus and I put in a web site in access for all.

But for what I heard in this forum, the Piano sound of the SD1plus use a new technology, and the SD1 have'nt. It will be interresting to test it !