The khene uses a pentatonic scale in one of two modes each mode having three possible keys. The khaen has five different lai, or modes: Lai Yai (A C D E G), Lai Noi (D F G A C), Lai Soutsanaen (G A C D E), Lai Po Sai (C D F G A), and Lai Soi (D E G A B).
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