Tobija Hrastnik was born in 1997 as the sixth child in a family of nine. He grew up in a small village near Laško, where he began playing the trumpet at the Music School Laško-Radeče under the guidance of Professor Marko Razboršek.

He continued his musical education in Celje with Professor Miran Majcen, graduating from high school there. He then pursued his studies at the Academy of Music in Ljubljana, where he graduated under Professor Jure Gradišnik. His education was further enriched by two years of Master’s studies in Hannover, Germany, under Professor Jeroen Berwaerts.

Throughout his secondary school years, Tobija regularly participated in competitions, earning several gold plaques and awards. From 2017 to 2019, he was a regular member of the European Union Youth Orchestra (EUYO). In 2019, he was awarded the prestigious Yamaha Prize Scholarship.

After completing his studies, Tobija was employed for a year as a trumpet player in the Bundespolizei Orchestra in Hannover, Germany. He is currently serving as the solo trumpet player in the RTV Slovenia Symphony Orchestra.