Lev Pupis is regarded as one of the leading classical saxophonists in Slovenia. He studied in Vienna, Paris, and Ljubljana, where he now works at the Music and Ballet Conservatoire of Ljubljana. Among his professors were Oto Vrhovnik, Jean-Yves Fourmeau, Vincent David, and Matjaž Drevenšek, along with many other world-renowned saxophonists.
As a soloist he has collaborated with renowned chamber and symphonic orchestras, such as the Slovenian Philharmonic Orchestra, the RTV Slovenia Symphony Orchestra, the Royal Strings of St. George, and others.
He founded the saxophone quartet Ensemble 4saxess which performs across Europe and the USA. The quartet has also recorded 2 albums, at the ZKP RTV SLO record company.
In addition, he is a founding member of the SloveniaLEVn Orchestra of Saxophones SOS, an orchestra made up of renowned Slovenian saxophonists. Contemporary authors from Slovenia and elsewhere have written over 30 compositions for him and his ensembles.
In 2010 he became a habilitated saxophone professor at the University of Ljubljana, currently holding the rank of docent. He often gives lectures at other Universities (Vienna, Graz, Debrecen, Bratislava, Hartford, Shenandoah, Piacenza, Belgrade) and is a mentor of several summer schools. He also frequently judges musical competitions home and abroad (Nova Gorica, Zagreb, Belgrade, Wroclaw, Torino).
He is the mastermind of the musical competition and festival Emona hosted by the Music and Ballet Conservatoire of Ljubljana and its artistic leader from 2011 to 2013.
Lev is also the artistic leader of the Sekvoja Cultural Association. Their main priority is working with young saxophonists and organising saxophone-themed musical events. The fruit of their labour are the SOS Junior saxophone orchestra, and musical events AS Bled and ALPSAX SUMMER Kranjska Gora.
Since 2015 Pupis has been a member of the International Saxophone Committee (ISC) and is an official promotor of the Sequoia and D’Addario brands.