You'll want to start by creating a file ```/content/loop.php`` - will be your default or "standard" format loop. For additional post format support, you'll need to add a loop file to match. For example, if your theme supports the post formats 'aside', 'video', and 'audio' then you should have:
/content/loop.php
: Standard/Default View/content/loop-aside.php
: View for Aside Post Format/content/loop-video.php
: View for Video Post Format/content/loop-audio.php
: View for Audio Post Format
As you cycle through your loop, the correct template part will be rendered for each post format.