 He then appeared on other artist's CDs as accompanying guitarist and also began developing pieces for a group/duo context, leading up to his CD "Just Listen" (2000), which featured collaborations with Tommy Emmanuel, jazz guitarist Craig Wagner, and acoustic super-group Nickel Creek.The group sound context was further developed on Kirtley's "Brazilian Guitar", released in 2002.This CD focuses on Brazilian Samba and Bossa Nova styles and was recorded with an ensemble setting.