A: While the GR-1 is not designed for a banjo, pedal steel, or ukulele, we've heard of some success with these types of instruments. However, since this unit was not designed for these types of instruments, Roland cannot endorse this application. What does this mean? Take your instrument of choice to a store and hook it up with a GK-2A and decide if the unit is able to track your instrument in the fashion you desire.