In 1998, he graduated from the Moscow State Tchaikovsky Conservatory in the class of teacher A. Knyazev.

In 1984, he became the winner of the Regional Competition of Young Cellists in Moscow.

In 1989, he became a laureate of the Moscow Competition of Young Cellists.

In 1998, he joined the "Sheremetev-Ensemble" (piano quartet) as a member and leader.

In 2001, as part of the "Sheremetev-Ensemble," he became a Diploma winner of the International J. Brahms Competition, Austria.

In 2002, with the "Sheremetev-Ensemble," he recorded a disc of works by the American composer John Mitchell.

In 2005, a new disc of the "Sheremetev-Ensemble" was released, which included piano quartets by R. Schumann and J. Brahms.

From 2003 to 2018, he worked in the Russian National Orchestra under the direction of M. Pletnev.

Since 2012, he has been actively involved in the restoration and further development of the so-called Old Performing School. Representatives of this school were Liszt, Paganini, Kontski, Chopin, Cortot, Rachmaninoff, Kreisler, Piatigorsky, Shafran, and many other major musicians. One of the last representatives of this School is Martha Argerich, as a performer who has most fully preserved the technological and musical techniques.

Since 2012, he has been teaching the Cello Playing School.

Since 2018, he has been performing as a soloist. He has experience performing both solo and chamber concerts in Germany, Switzerland, Austria, Italy, England, Singapore, Ukraine, and Russia.

Since 2022, he has been living in Latvia.

Olga Andryushchenko is a German pianist born in Moscow. She graduated from the Moscow Conservatory and completed postgraduate studies in piano and historical keyboard instruments with Alexei Lyubimov, as well as organ studies with Alexei Parshin. She continued her education in Germany as a DAAD (Goethe-Institut) scholarship holder, studying in Cologne with Arbo Valdma and later in Hannover with Vladimir Krainev. She has further refined her artistry through masterclasses with leading pianists of the Russian and European traditions.

She was a soloist of the Moscow State Academic Philharmonic Society and is a prizewinner of numerous international competitions, including Franz Schubert und die Musik der Moderne, Musica Antiqua, the Hammerklavier Competition at Schloss Kremsegg, Bach Competition in Leipzig, Schubert Competition in Dortmund, Nikolai Rubinstein, and Scriabin Competition in Paris.

Olga Andryushchenko has performed at major concert halls worldwide, including the Moscow and St. Petersburg Philharmonics, Mariinsky Theatre, Gewandhaus Leipzig, Beethoven-Haus Bonn, Palais des Beaux-Arts Brussels, Concertgebouw Bruges, Cité de la Musique Paris, and Oji Hall Tokyo. She regularly appears at prominent international festivals across Europe, Russia, and Japan.

Her collaborations include the Arnold Schönberg Center in Vienna, Schubert Society Duisburg, International Rachmaninoff Society, and leading German cultural institutions. She has worked with WDR and NDR radio and television, and recorded extensively for Naxos, Melodiya, and Alba Records, including acclaimed releases of 20th-century piano music and Mendelssohn's complete works for cello and piano on period instruments.