Gintaras Januševičius was born in Moscow in the family of composer Nailia Galiyamova and trumpeter Algirdas Januševičius. In 1987, the family moved to Klaipėda. He began studying the piano at the age of four at the Eduardas Balsys Art Gymnasium in Vilnius, where his teacher was Valentina Potejenko. When Algirdas became the concertmaster of the trumpet section in the Lithuanian State Symphony Orchestra, the family moved to Vilnius, where Gintaras began attending the M. K. Čiurlionis National School of Arts, where his specialty teachers were Valė Kulikauskienė from 1992 to 1998 and Jurgis Bialobzheskis from 1998 to 2003. After finishing school he studied at the Lithuanian Academy of Music and Theatre, and then went to live and study with one of the most famous Russian pianists - Professor Vladimir Krainev in Hanover. After the professor's death in 2011, he continued his studies in Bernd Goetzke's class.
Gintaras made his debut with an orchestra at the age of fifteen, performing Felix Mendelssohn's Capriccio Brillante op.25 at the Vilnius Congress Hall with the Lithuanian State Symphony Orchestra, conducted by Vytautas Lukočius. Since then, he has performed with more than 40 orchestras, appearing in such famous concert halls as the Palau de la Musica Catalana in Barcelona, the Salle Wilfrid-Pelletier in Montreal, the Auditorio Nacional in Madrid, the Salle Cortot in Paris, Estonia in Tallinn, and others. Gintaras' solo recitals have been held in Paris, Tallinn, Moscow, Berlin, Warsaw, the European Capital of Culture Cork, Chisinau, Hamamatsu and other cities. He has worked with such conductors as Saulius Sondeckis, Juozas Domarkas, Gintaras Rinkevičius, Pavel Berman, Jacques Lacombe, Fuat Mansurov, Dmitry Liss, Salvador Brotons and others. Gintaras can also often be found in various chamber projects. Among his stage partners were cellist Leonidas Gorochovas, accordionist Elsbeth Moser, violinists Adam Kostecki, Mariusz Patyra, Solenne Paidassi, pianists Aleksandras Palėjus, Peter Aidu, Ashley Hribar and Marc Pierre Toth, singer Merūnas Vitulskis.
Gintaras won the Republican Balys Dvarionas and Johann Sebastian Bach competitions at the age of 16, as well as the Grand Prix at the international Fryderyk Chopin pianists' competition in Estonia in 2002, diplomas at the Mikalojus Konstantinas Čiurlionis pianists' competition in Vilnius (2003) and the Montreal pianists' competition in Canada (2004), scholarships from the International Yamaha and Yehudi Menuhin Life Music Now funds. In 2007, he won the third place at the international M. K. Čiurlionis pianists' and organists' competition, and a bronze medal at the "Piano Campus" pianists' competition in France. In March 2010, Gintaras won silver and a special prize for the best performance of Ludwig van Beethoven's sonatas at the international Pinerolo pianists' competition in Italy. A few months later, the pianist was also awarded a silver medal at the international "New Stars" competition in Vernigerode, Germany. In May 2010, the Lithuanian won gold in the Rotary Club organized competition "Palma de Mallorca". Later that same year, in August, Gintaras took second place in the international Ibiza pianists' competition. In April 2011, he won the international Fryderyk Chopin Society pianists' competition in Hanover, Germany.
In 2008, Gintaras Januševičius created the concert series "Plathner's Eleven", which has become an integral part of life in Hanover. In 2014, it was already in its seventh season and during its existence presented more than 250 artists from all over the world on stage, as well as more than 30 world premieres. Since 2009, Gintaras has been an active pedagogue and has been invited to lead master classes and lectures at universities and conservatories around the world, including Shenzhen University in China, the Moldavian Academy of Music and Dance, the Yamaha Center in Japan, the Lithuanian Academy of Music and others. In 2012, Gintaras made his debut as a competition jury member in Spain and has since been regularly invited to evaluate competitions. In 2013, Gintaras created his first music competition - the "Hanover Music Talent Exchange".
