You don't you don't have to put lots of stuff in a photograph. Sometimes it's better to keep it simple, Less is more. Take a photograph below as an example. One thing that makes the photo work is the amount of white space in it. It also makes the photo good for use buy somebody like Fendrick and Peck for instance (you really should check them out).
Thanks Madeline and Brian for allowing me to take this picture of one of your instruments.