As exactly as the title suggests. A description of what pitch is and how to manipulate the numbers when framing and planning a project. Carpentry is mostly breaking down the elements of a building into simple shapes, making it easier to understand.
https://www.rockguitarpower.com – This is a lesson on how to adjust the truss rod on your guitar. It covers how to test your neck to see if it needs adjusting and how to go about doing it.