How do you give individual key signatures to instruments on noteflight?

1. Open the score you want to edit in Noteflight.

2. Click on the "Instruments" tab at the top of the page.

3. Find the instrument you want to add a key signature to and click on its name.

4. In the "Key Signature" section, select the key signature you want to use from the dropdown menu.

5. Click on the "Apply" button.

6. Repeat steps 4 and 5 for any other instruments you want to add key signatures to.