I am often asked, "What would YOU like your students to know by the time they go off to high school?" It's an excellent question, because although every district's curriculum has specific items that should be taught, I certainly have my own expectations for what I want my students to know, and those expectations inform how I teach items on a curriculum.
There are four areas in which I'd like my students to have age-appropriate mastery by the end of elementary school. Click for more information on each.
1. Music Literacy
2. Music Performance 
3. Music History/Musicology
4. Composition & Improvisation

The US Common Core Curriculum standards in Music can be accessed by clicking here.