In addition to his solo playing, John has been a part of outstanding performing ensembles.  Together with flutist Karina Nuñez, the Oeth-Nuñez Duo performed throughout Memphis and recorded Francia y Argentina, a collection of French and Argentine music. John has performed as a soloist for the Starkville Symphony Orchestra and the University of Memphis Opera.  Alongside guitarist Andrew Lesley Smith, Petrichor Duo has given many notable concerts and premieres. As avid players of accessible new music, Petrichor Duo is a catalyst for new compositions for guitar duo. Composers such as Robert Springer, Kohei Kondo and Zach Jones have written and dedicated works to Petrichor Duo. Their upcoming album Contemporary Works for Guitar Duo is set to be released in 2021.

John is an advocate of 21st-century guitar compositions as well as underperformed Renaissance lute and vihuela works. Compositions have been dedicated to him by international artists including Petrichor, a piece gifted by Japanese composer Kohei Kondo. He has premiered and released recording premieres of monumental works like the massive 21-movement Sketchbooks by Michael Karmon. This work is featured on his solo album, Sketches, which is a collection of works by contemporary composers all in the genre of a sketch. John completed his doctoral dissertation focusing on the lute works of Vincenzo Galilei, Galileo’s father. John’s recording Fronimo consists of his solo guitar arrangements of Galilei’s ricercari in all of the Renaissance modes. John's latest album Final Fantasy Guitar Collection has a colossal 46 guitar arrangements from the video game series.