Sxisma Editions is an ASCAP member (American Society of Composers Authors and Publishers) and the official music publisher of Katerina Stamatelos's compositions. You may purchase the study scores here. However, in order to be able to use them for performance purposes, you still need to obtain a "clearance." Upon completion of this requirement, you will receive the full score and parts. For further instructions, please click on the "performance permits" button and state your request in the form provided. Our site: