The pentatonic, or five-note, scale is commonly used in a variety of musical styles. The notes in a pentatonic scale will produce a pleasant sound regardless of what order they are played. Since wind chimes sound in random order, use of this scale is ideal. The tone of each tube is determined by its length and thickness. Tuning your chimes will take time and patience but you will be able to enjoy the finished project for years.
Things You'll Need
- Copper tube
- Measuring tape
- Tubing cutter
- Drill with 1/8-inch bit
- Rat-tail file
- Circular frame
- Nylon string or fishing line
- Wood disk
- Wind catcher
- Chromatic Tuner or piano
- Sandpaper or grinder
Measure and cut your tube sections. A 27-inch length of one-inch, type M copper pipe will produce a tone equivalent to middle C on a piano. For a major pentatonic scale with a root note of C, the tones should be C, D, E, G and A. The remaining tube lengths should be: D = 25 8/16; E = 24 1/16; G = 22 1/16; A = 20 13/16.
Drill a 1/8-inch hole through each pipe at its end node. The node is the point at which the least vibration occurs. This is located 22.4 percent from the end of the pipe. For the pipes listed in step one the nodes are: C = 6 1/16; D = 5 11/16; E = 5 6/16; G = 4 15/16; A = 4 11/16.
Remove any sharp edges or burrs from the inside of your drilled holes with a rat-tail file.
Attach the chimes to the frame with nylon string or fishing line. Space the chimes as evenly as possible around the frame.
Drill a 1/8-inch hole through the center of your wood disk. Thread a piece of nylon string or fishing line through the hole and attach the top of the string to the center of your frame.
Adjust the height of the disk to strike as close to the bottom of the chimes as possible. Tie a knot underneath the disk to hold it in place and attach your wind catcher to the end of the string. The wind catcher should hang at least six-inches below your lowest hanging chime.
Tune your chimes by striking them one at a time near the middle. Compare the tone with the chromatic tuner or piano. Sand or grind a bit off the bottom of the pipe to raise the pitch.