Born in Plovdiv, Bulgaria, Gergana Kusheva began her double bass studies at the age of 12 at the School of Music and Arts in her hometown, in the class of Dimitur Petrov.

She continued her studies at the Conservatoire de Lausanne where she obtained a teaching diploma and then a concert diploma with the congratulations of the jury. During this period, she perfected her skills as an orchestral musician by participating in numerous concerts with various groups such as the Lausanne Chamber Orchestra, the Basel Symphony Orchestra, Pierre Amoyal's Camerata and the Bern Symphony Orchestra.

In November 2007, she was admitted to the Orchestre philharmonique de Liège and finally joined the Orchestre de la Suisse Romande in 2008.