<p>So I’m building querysets in Django, and I think I’m in love. Not only can you chain query sets together - that is, you can specify multiple things to search for, such as the title, duration and whatnot - but you can chain across relationships. So, I can search for a song in the Score table that contains ‘butt’ in the title regardless of case, and specify that it’s only by a certain composer, which is a completely separate table.</p>