Pentatonic xylophone for basic musical education has frame with a resonance box with sound bars separated visibly irregular interval

摘要

A pentatonic xylophone (10) has a frame with a resonance box (12) with sound bars (14). The musical interval between two adjacent sound bars is equivalent to three semitones. The musical interval between each of the other four sound bars is equivalent to two semitones. The physical distance between the two sound bars separated by three semitones is visibly greater than the physical distance separating the other sound bars.