In this guitar lesson, I’ll show y’all some fun ways to use key of D guitar scales to play country & bluegrass fill riffs. All of the licks we’ll cover today are great for transitioning between chords, and they’re also useful for playing country & bluegrass guitar solos. First, we’ll cover the main scale shapes that you need to memorize. After that, I’ll teach you ten of my favorite country fill riffs in the key of D. My main goal for this lesson is to show you how I visualize key of D scale shapes when I’m improvising key of D riffs. This should be a very useful lesson for the rhythm guitar folks and also for the country & bluegrass lead guitar pickers!