
Making a Horsetail Pan Flute
By Storm
Strolling by a patch of horsetail (Equisetum hyemale), it is hard to resist cutting a length of this slender, abrasive plant and blowing across an open end for its sharp whistle effect. Upon witnessing a friend play his pan flute one day, I realized that I could fashion one out of horsetail.
The next step is to cut the horsetail into suitable lengths to produce whistles of different pitches. I find that using a swift chopping motion with an antler cleaver works well, giving a clean cut without crushing the horsetail (photo 1). When cutting horsetail into whistles, you don't want pieces that are totally hollow. One must leave an intact node, or cross-wall, inside the length of each piece (photo 2). Some species of Equisetum branch at these nodes. I have not had success making whistles out of these species.
Experiment, experiment, experiment! Knowing nothing about music, I cut a couple hundred pieces and blew away, setting aside those that "sounded right." Generally, the longer and/or wider the piece, the lower it will sound. Coincidentally (I whimsically prefer instinctively), when I finished selecting those whistles I deemed good enough to affix to a frame, a musician friend informed me that my arrangement decently coincided with a nearly two octave scale, starting with a C (438 Hz).
For the triangular frame, I chose clematis, which was light and handy. Here was the most difficult part of this endeavor-attaching the horsetail to the frame, which proved to be intricate and taxing to my dexterous capabilities. Photo 3 shows the grand fir pitch and yucca fibers I used to attach the whistles to the frame. After I tied the frame together with yucca, I glued each whistle to the frame using the heated pitch. Upon drying, I then tied the horsetail to the frame with a yucca fiber, with the thicker fibers being more reliable (but be careful not to crush the horsetail when cinching down your knots!). Occasionally a whistle would dislodge from the frame with handling, so re-application of pitch was necessary. When each whistle was finally tied to the frame, I re-enforced the bindings with a drop of heated pitch (photo 4). Photo 5 shows the finished product, having lastly rubbed ochre rock dust on all pitched surfaces to eliminate stickiness.
This is a great activity to do with kids: it gives them a real connection with their environment; utilizes a widespread resource (here in the Pacific Northwest); and produces a final product that their parents don't mind them having (as opposed to, say, a stone blade). Enjoy! 