Mike Marshall and Chris Thile played one piece during their woodsongs duo concert named Sedi Donka. This is a Bulgarian folk dance tune in 25/8, divided in 7 + 7 + 11 eights.
Before they played the tune Chris and Mike demonstrated this rhythm to the public.
The rhythm goes like this:
ti – ke – ti, tam, tam
ti – ke – ti, tam, tam
ti – ke, ti – ke
ti – ke – ti, tam, tam
Today I have searched again for this tune and I found the sheet music as an ABC file, but also as a pdf. The best place I found this is the following (you can use see and hear to see the music and hear it):
http://www.goess.org/mason/other-abc/
Much more interesting is it to view the dance with the music, and the steps made by the dancers:
Sedi Donka Bulgarian Folk Dance Dansuri Populare Bulgaria
A great version of Sedi Donka with Clarinet:
Sedi Donka Bulgarian Music Woytek Mrozek – clarinet, conductor, composer
Now the version by Mike Marshall and Chris Thile:
Sedi Donka – Mandolin Duet – Mike Marshall & Chris Thile
It is not so difficult to play – go and try it!
CD tip (Amazon partnerlink):