"As a teacher, a concert singer, director of a successful quartet, Mr. Kratz knows the style of music that the public likes and that singers can sing. In addition to this, he has a natural fund of melody and a thorough knowledge of the principles of composition, making an ideal equipment for the writing of popular music for male quartets. Mr. Kratz lives in Omaha, where he is prominent in musical life, and musical director of five organizations. His compositions have been well received by the public." ('Musician' magazine advertisement, September 1910)