Hello bendogg,
It sounds like you're trying to increase the font size in iTunes to make the screen more readable, and we know how important that is.
Check out the information listed here: Make it easier to see what's on the screen of your Mac
Specifically, use these steps:
"Use zoom
Zoom in on the screen: Choose Apple menu > System Preferences, click Accessibility, then click Zoom. You can zoom the entire screen or an area of it.
- When “Use keyboard shortcuts to zoom” is selected, you can zoom in (press Option-Command-Equal sign), zoom out (press Option-Command-Minus sign), or quickly switch between the two settings (press Option-Command-8).
- When “Use scroll gesture with modifier keys to zoom” is selected, you can zoom in by pressing and holding the Control key (or another modifier key) and swiping up with two fingers on your trackpad."
We hope this helps!