 One of the first compositions exploring that direction is his piece "Blues in 9", based on a Bulgarian folk dance rhythm pattern and turning the familiar structures from both folk and jazz into something completely different.For him using asymmetric Bulgarian meters and the unusual melodic intervals typical to Bulgarian folk music was not just an attempt to towards the unusual, but aiming to evoke specific associations of those popular metric structures.His style also marked the first steps towards blending extremities in musical classification - rough folk and refined classical, serious art music and entertainment music, composer’s and performer’s music.