Watch the Country Shuffle Solo online guitar lesson by Jason Loughlin from Essentials: Country Soloing Styles
Shuffles are the music of the honky tonks. Buck Owens and The Buckaroos were the kings of the country shuffle, with walking bass lines and shuffling drums with guitars playing with strong accents on the upbeats.
I steal a lot from pedal steel players when playing shuffles - this study will use steel bends, contrary motion licks, staccato arpeggios, and blues licks in study all come from steel players. As a soloist, using substitutions in shuffles sounds great. The most common ones are secondary IV's and a raised diminished iv. Altering any dominant chords is acceptable, too. For instance, using and augmented I chord to get to the IV or using a V7b9 to get the I chord are common. This study is in C and is on the up-tempo side of shuffles.