There are many arrangements for intermediate-level full orchestra; however, beginning-level pieces are rare due to the disparity in key, rhythms, and range between beginning strings and winds. On our Full Orchestra Department Page, you can filter any Full Orchestra category to "very easy" or "easy." You may also find flexible ensemble books in the solo and ensemble section of the website that provides options. They allow for a varied mix of string and wind instrumentation, some at easy grade levels.