Koshi chimes are available in 4 different melodies, inspired by the four elements:  Terra (G C E F G C E G), Aqua (A D F G A D F A / Pentatonic), Aria (A C E A B C E B) and Ignis (G B D G B D G / Pentatonic).  Each has its own magical timbre and can be played harmoniously with all the others.