Leo Kottke is a tremendous solo guitar player that has his audience captivated with his instrumentals. However, he does the odd little bit of humor in between pieces, and, after a few instrumental pieces, he does sing! No one, I can safely say, would place Kottke in the realm of truly great vocalists. But the charm of his vocals, after he has lit the place up with his guitar playing, is wonderful. And the placement of his vocals in his set has the additional benefit of making the audience more receptive to his songs. Kottke knows what his strength is. His audience knows what his strength is. But I would be disappointed to go to another Kottke concert and not hear him sing.

Definitely play to your strength, but don't be afraid to mix in some vocals as well. You might be surprised how well they are received.

Freightdawg