Dan  accompanies Bev with extraordinary flat picking on guitar and hot licks on banjo. They provide musical entertainment for restaurants, clubs, festivals, special events, and special occasions. Hahn & Geib perform covering  the Southwestern Michigan,Northern Indiana and the Chicago Illinois areas. Areas included in Southwestern Michigan are New Buffalo, South Haven, Kalamazoo, and St. Joseph.

For over 30 years, Dan has played  the countryside with The Art Gomperz Band playing their own unique blend of bluegrass and acoustic music. With deep roots in Bluegrass, County and Alternative Acoustic Dans music spans  early days of hard driving  Bluegrass Banjo and Guitar to today's New Age Bluegrass, Swing Boogie and Acoustic Rock.. Over the years, Dan is proud to have shared the stage with: Pure Prairie League, Commander Cody,  Peter Rowan and the Dillards,