Buckle up we're going for a ride! Eight More Miles to Louisville Sam Bush style uses scale pattern, triplets, cross-picking, and more. This is a note for note mandolin solo - on the guitar! There's some great licks available to check out too.
For the triplets in measures 5 & 7 use a quick hammer on and pull-off after picking the first note. You might need to use the focus feature to listen and practice the measure repeatedly to get the timing right. Create your own exercise and just work on the triplet hammer-on and pull off to work on that if it's tough for you.