I recorded with my genealogy program, "Ahnenforscher 2000" the parish books of Brienz for the time between 1667 and 1710 (all baptisms, marriages and burials) There I found two families with MUSCHI. - Hans Muschi married Elsi Flumann and later was a Hans married with Madleni Bringold (I'm not sure if it wassame Hans, but it seems to be so) He had two sons : Christen born 1664 and Hans born 1680. - Peter Muschi married with Madlena Frutiger. They had a daugther named Anni. Still today in Brienz the name MUSCHI is know, but only as a nickname for a the families with the right name Muller. This is what I know so far about MUSCHI from Brienz, if you would like to know more about these Muschi's it would be neccesary to make more researches, which I could do for you.