Was born in Riga and educated at the UdK-Berlin, where he studied conducting with Prof. Lutz Koehler, and at Jazeps Vitols Latvian Academy of Music, at which he graduated in French horn with Prof. Arvids Klisans, and conducting with Prof. Imants Resnis, further improving professional mastery with Vassily Sinaisky, Leonid Grin, Neeme Jarvi, Paavo Jarvi, Heinrich Schiff and other distinguished teachers.
Currently Atvars is the chief conductor of Liepaja Amber Sound Symphony orchestra, as well as the artistic director of Liepaja International Piano Stars Festival. Since his successful Latvian National Opera (LNO) conducting debut with Verdi’s La Traviata in 2009, he is regulary conducting different operas, ballets and concerts as well. In 2011, Atvars conducted LNO guest performances in Tallin. In season 2013/14 Atvars is a conductor of three new Latvian National Opera productions – S.Prokofiev’s Love for Three Oranges, K.Petersons's Mikhail and Mikhail Play Chess, as well as music director for new Latvian ballet Three Meetings.
Season 2013./14. includes new international engagements with the Orchestra Sinfonica di Roma, Philharmonie Südwestfalen and Yasar University chamber orchestra.Until present, Atvars has worked with Orchestra Sinfonica di Bari (debut in 2013), Milli Reasürans Chamber orchestra (debut in 2013), and Lithuanian State Symphony orchestra (debut in 2012). In November 2009, Atvars made his first international conducting debut with Berliner Symphoniker.
During period 1997-2009, as a French horn player, Atvars played in many local and international youth and professional orchestras, performing as a soloist in concertos as well as taking part in chamber music. From 2002-2010 Atvars was a member of Latvian National Opera orchestra.