Reed shaped instruments are furnished with passages and orifices corresponding to the other forms. The chamber is tubular and the lower end is open, and the finger holes, when present, are on the upper side of the cylinder. One example without finger holes has two notes nearly an octave apart, which are produced, the higher with the tube open and the lower with it closed. Perhaps the most satisfactory instrument in the whole collection, so far as range is concerned, is shown in Fig. 241, and a section is given in Fig. 242. It is capable of yielding the notes indicated in the accompanying scale: First, a normal series of eight sounds, produced as shown in the diagram, and,
second, a series produced by blowing with greater force, one note two octaves above its radical and the others three octaves above. These notes are difficult to produce and hold and were probably not utilized by the native performer.
Fig. 241. Tubular instrument with two finger holes, alligator group—1/1.
Fig. 242. Section of whistle.