She participated in violin courses with Prof. Munteanu (Romania) in 1994, Vanja Milanova (Bulgaria) and Michael Barta (United States) from 1995 to 1999, with José Luis Garcia (Spain) and with Alois Kottmann (Germany) in 1999 and 2000, and with Vladimir Spivakov (Russia) in 2000.
Kouzmanova has appeared in Australia, Austria, France, Germany, Greece, Israel, Italy, Portugal, Slovakia, Spain, Uruguay and in the USA.
Several composers (R. Dimitrov, M. Kerer, P. Liakakis, J. Purgina, P. Richter, T. Wally among others) dedicated violin compositions to her, some of which she has premiered.
[2][3] Her first CD recording was in 1996 with Plovdiv Philharmonic Orchestra under the baton of Nayden Todorov, playing the Bruch Violin concerto No.
She has played Stradivari violins from 1681 ("Reynier"), 1716 ("ex Nachez"), 1717, 1725 ("Da Vinci"), and 1732 ("Red Diamond"); a Pietro Guarneri (1735); a Guarneri del Gesu (1741 "ex Hubermann"), and several newly made violins, including a Gerlinde Reutterer (2004) and a Stefan-Peter Greiner.