How do you increase the pich on a recorder?

To increase the pitch on a recorder, you can cover the finger holes more partially or fully, which raises the pitch as you play higher notes. Additionally, using a thinner or shorter recorder can also result in higher pitches. Adjusting your breath pressure can help control the pitch as well, allowing for sharper notes. Lastly, using a different mouthpiece or playing technique can also affect the pitch of the notes produced.