Abstract: A percussion instrument made of durable synthetic tubing which is longitudinally rigid and radially flexible. The tubes are precisely tunable to specific musical pitches through combining proper diameters and lengths of the tubes. The sound is produced primarily by vibration of the column of air within and exiting the tube, which results from striking the tube with an object such as a mallet or from striking another object, including the human body, with the tube. The nature of the sound produced varies greatly with the resonant and textural qualities of the struck object. Accordingly, multi-textured percussion blocks are provided for striking with the tubes. In addition, a cap is provided for the end of the tube which will lower its pitch about one octave and which, when combined with a second cap, will create a cavity in which pellets, such as steel shot or dried beans, may be placed to produce a rattle.