In October 1998, Belyaev worked as a musician in clubs in Khabarovsk. By 2004, he had become the art director of the "Rus" club, where he assembled a group of musicians, including Dmitry Pavlov (guitar), Maksim Bondarenko (bass), Konstantin Drobyt’ko (trumpet), and Evgeny Kozhin (drums). Utilizing the club's resources, Belyaev began creating music that would later form the basis of Therr Maitz. In 2006, Belyaev moved to Moscow, where he worked as an
arranger for four years. While in Moscow, he collaborated with
artists such as
Tamara Gverdtsiteli, Igor Grigoriev,
Maksim Pokrovsky, and
Polina Gagarina. In 2013, Belyaev participated in the second season of the Russian version of
The Voice. All four mentors of the show selected him, and he chose
Leonid Agutin as his coach. He was eliminated by Agutin after the second round, but was subsequently saved by Russian ethnic singer
Pelageya. Belyaev exited the show during the semifinal stage. During the autumn of 2014, Belyaev supported the Russian Greenpeace project "Million for Separate Collection" and presented the song "Stop. Quiet" as a gift to those advocating for waste recycling. In 2015, Belyaev served as a sound producer for the TV show "Main Stage" ("Glavnaya Scena") on Channel Rossiya-1, working on Igor Matvienko's team. He also served as a jury member during the qualifying castings. On 7 January 2015, the film "Voices of a Big Country" ("Golosa bolshoi strany") was released, with Anton Belyaev serving as the sound producer and composer for the movie. Towards the end of 2016, Belyaev created music for the immersive play "The Returning" ("Vernuvshiesya"), which premiered on 1 December 2016, in Moscow. The play was a collaboration between directors Viktor Karina and Mia Zanette from the New York theatre company Journey Lab and Russian producers Vyacheslav Dusmuhametov and Miguel (choreographer and mentor of the TV show "Dances" ("Tancy") on
TNT Channel). On 14 February 2018, the Russian film "The Ice" premiered. Belyaev composed the film's music in collaboration with Dmitriy Selipanov. The film subsequently premiered in Germany, China, and South Korea. In 2019, Belyaev participated in the advertising campaign for
UNIQLO, promoting a new collection and introducing an online shop in Russia. == Personal life ==