Arduino Guidance for Art Installation Adjustments

I'm looking for an expert who can educate me about Arduino for an art installation. Despite having no prior experience, I am keen on learning how to access and adjust the programming for my art installation. Specifically, I anticipate needing to tweak the speed or timing of operations. If you have a strong understanding of Arduino and excellent teaching skills, then you are an ideal fit. Here's what I need:

- Detailed guidance on accessing Arduino programming
- Explanation of the basics of Arduino
- Instructions on how to modify operation's speed or timing