DIĀNA JAUNZEME-PORTNAJA graduated from J. Ivanovs Rēzekne Secondary Music School, and afterwards, from J. Vītols Latvian Academy of Music, attaining her Bachelor’s and Master’s degrees in the organ class of prof. T. Deksnis (2005). The organist developed her mastery in the Enschede Academy of Music in the Netherlands (2001), the International Organ Academy in Sweden (2003, 2005), and in master classes in Sweden, Spain and Lithuania.

She has frequently performed concerts in churches of Rīga and Latvia both with solo programs and in collaboration with soloists and choirs; performed in Lithuania, Poland, Hungary, Germany, Slovenia, Austria, Switzerland, Sweden, Finland and other countries.

D. Jaunzeme-Portnaja is a member of the organ duet RIGA ORGANUM DUO since 2013. The organist works as a project manager, as well, organizing concert series in many Latvian churches and taking part for organization of the historical organs festival over the Latvia since 2017.