Mark Geslison has spent several years researching, teaching, and performing traditional folk music as director of the Folk Music Ensembles at BYU. He has toured internationally with the BYU folk dance and music ensembles on several occasions and performs regularly at different events in Utah. Mark is also the founder of the Institute of American Music, a private organization for teaching and promoting traditional American music as well as other folk music styles. Mark plays nylon and steel-string guitars, mandolin, octave mandolin, mountain dulcimer, bass, bodhran, and other instruments.
Geoff Groberg enjoys recording and performing bluegrass, Celtic, and other styles of traditional acoustic music. He plays several musical instruments including piano, guitar, bass, and banjo. He is from Utah and performs regularly with local bluegrass bands including Miles To Go, Lincoln Highway, and Fire on the Mountain. He has also travelled and performed in Scandinavia, Russia, Canada, and many states in the U.S. In addition to performing, Geoff also enjoys composing, producing and engineering music from his home studio in Elk Ridge, Utah.
Together, Mark and Geoff have co-authored several CDs of early American Hymns and Folk
Mark Geslison has spent several years researching, teaching, and performing traditional folk music as director of the Folk Music Ensembles at BYU. He has toured internationally with the BYU folk dance and music ensembles on several occasions and performs regularly at different events in 
plays several musical instruments including piano, guitar, bass, and banjo. He is from 