1889—Quincy, Illinois

Pierre V. Olker’s Musician’s Hand and Text Book mentions alto, tenor, and bass trombones, noting the following about alto: “The E-flat Alto Slide Trombone with a notation in the Alto clef, derives its name from the fact that the tones produced in the closed (first) position, are all intervals of the chord of E-flat major” (Olker 77). An overtone series in E-flat is notated on the following page (see below; public domain image) (Olker 78).