is one of the international artists of the non-profit global organization for music, culture and cultural diplomacy (EMMA for Peace), under the patronage of UNESCO and with Riccardo Muti as honorary president. Franko is included in the Hübners encyclopaedia "Who is Who" 2012, a guide book of significant people from the fields of economics, politics, science, culture, art and sports. In 2017, he was made an Associate of the Royal Academy of Music in London.
He has appeared as soloist with numerous orchestras, including the Karlovy Vary Symphony Orchestra, the Royal Academy of Music Orchestra, the Malta Philharmonic Orchestra, Kaliningrad Philharmonic Orchestra, Österreichische Symphoniker, Arad State Symphony Orchestra, Winter Green Orchestra, Croatian Chamber Orchestra, Croatian Philharmonic Orchestra, the Oregon Music Festival Orchestra and Lugansk Philharmonic. He also performed as a member of the London Sinfonietta, the Liverpool Philharmonic Orchestra, Ensemble 10/10, the Manchester University Symphony Orchestra, Estonian Sinfonietta and the Symphony Orchestra of HRT.
His performances were broadcast on BBC Radio 3, BBC Scotland, RAI 3, ORF radio OEI, LRT (Lithuanian national radio), Radio Beograd 3 and others. His engagements have taken him throughout Europe to North America and the Far East and has appeared in venues from Smetana Hall in Prague, Oriental Arts Center in Shanghai, to Queen Elizabeth Hall in London. He has collaborated with eminent artists such as JC Domenech, G. Benjamin, G. Carpenter, S. Hauser, D. Ashkenazy, M. Tarbuk, E. Sakpinar, amongst others.
He has recorded the concerto for accordion and string ensemble by Charles Camilleri for Naxos and the double concerto for accordion, bandoneon, piano and orchestra by Beth Mehocic for Navona records.
He studied in Croatia and in the UK at the Royal Academy of Music in London. Currently he teaches at the Academy of Music, Juraj Dobrila University of Pula, Croatia.