Ru mãi ngàn năm: Tình khúc Trịnh Công Sơn Quang Dũng
The most used Key signature in this album is Em. with minor being the most reccurent mode.
Harmonic Profile Ru mãi ngàn năm: Tình khúc Trịnh Công Sơn
Album has 7 different key signatures, divided as follows:
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7 songs are minor (out of 9).
