Charlie owns 1 flute + 2 horns + 1 harp = 4 musical instruments.
Carli owns twice as many flutes as Charlie, so Carli owns 2 * 1 flute = 2 flutes.
Carli owns half as many horns as Charlie, so Carli owns 1/2 * 2 horns = 1 horn.
Carli does not own a harp.
Therefore, Carli owns 2 flutes + 1 horn + 0 harps = 3 musical instruments.
The total number of musical instruments owned by both Charlie and Carli is 4 + 3 = 7.
#### 7
The answer is: 7
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
If Charlie owns one flute, two horns, and a harp, and Carli owns twice as many flutes as Charlie and half as many horns as Charlie (but no harps), what is the total number of musical instruments owned by both Charlie and Carli?

### Answer:
