Harmony singing is a deep rooted tradition in Slovenia, and is at least three-part singing (four voices), while in some regions even up to eight-part singing (nine voices). Slovenian folk songs, thus, usually resounds soft and harmonious, and are very seldom in minor. Traditional Slovenian folk music is performed on Styrian harmonica (the oldest type of accordion), fiddle, clarinet, zithers, flute, and by brass bands of alpine type. In eastern Slovenia, fiddle and cimbalon bands are called velike goslarije.