Adam Shoenfeld has helped shape the tone of modern country guitar. How? Well, the Nashville-based session star, producer, and frontman has played on hundreds of albums and 45 No. 1 country hits, starting with Jason Aldean’s “Hicktown,” since 2005. Plus, he’s found time for several bands of his own as well as the first studio album under his own name, All the Birds Sing, which drops January 28. Shoenfeld recently let PG’s John Bohlinger in on some of his sonic secrets, running through his session rig at East Nashville’s 3Sirens studio (visit: https://www.3sirens.com/).