"Cumbia Raspa" is a modern example of Cumbia Music. There are two chords in this piece. A Minor and E7. The scale used in much Cumbia music is the Harmonic Minor scale.
Traditional Cumbia bass lines are focused on down beats. Many early and more traditional Cumbia pieces were similar to an American March feel. Traditional Cumbia pieces often used the one minor and the five 7th chords, but they used the "5th in the bass" of the five chord in order to create the unique harmony that became characteristic and very common in Cumbia bass lines. In this piece we've taken a more modern, less traditional approach to Cumbia but it is still very deeply rooted in the Cumbia tradition.
Piano tracks and arrangements composed and recorded by: Rony Caceres at www.rcmusic.net