content: import React from 'react';
  import AppBar from 'material-ui/AppBar';
  import IconButton from 'material-ui/IconButton';
  import IconMenu from 'material-ui/IconMenu';
  import MenuItem from 'material-ui/MenuItem';
  import MoreVertIcon from 'material-ui/svg-icons/navigation/more-vert';
  import QueueMusicIcon from 'material-ui/svg-icons/av/queue-music';
  
  const Nav = () => (
    <AppBar
      title="Aurora"
      iconElementLeft={<IconButton><QueueMusicIcon /></IconButton>}
      iconElementRight={
        <IconMenu
          iconButtonElement={<IconButton><MoreVertIcon /></IconButton>}
          targetOrigin={{ horizontal: 'right', vertical: 'top' }}
          anchorOrigin={{ horizontal: 'right', vertical: 'top' }}
        >
          <MenuItem primaryText="Refresh" />
          <MenuItem primaryText="Help" />
          <MenuItem primaryText="Sign out" />
        </IconMenu>
      }
    />
  );
  
  Nav.defaultProps = {
  };
  
  export default Nav;
  