Aleh Lessoun graduated from the Belarusian State Academy of Music majoring in piano solo in1996 (class of V. Nekhaenko), later he got his degree in opera and symphonic conducting from the same school in 2002 (class of the Honoured Artist of the Republic of Belarus Nikolai Koliadko).
Aleh started his career at the National Academic Bolshoi Opera and Ballet Theatre of the Republic of Belarus as an opera accompanist in 1996. From 1999 to 2011, he became a conductor at the Bolshoi Theatre of Belarus. He is musical director of such productions as Snow White and the Seven Dwarfs by Boris Pavlovsky, Paquita (Grand pas) by Ludwig Minkus, Chopiniana to the music by Frédéric Chopin, Macbeth by Kuznetsov, Gaetano Donizetti's Rita, ou le mari battu, Coffee cantata by J. S. Bach, etc.
From 2001 to the present time, maestro Lessoun has worked with the State Academic Symphony Orchestra of the Republic of Belarus.
From 2003 to 2005, Aleh Lessoun took the position of principal conductor of the National State Broadcasting Company Orchestra of the Republic of Belarus. Under his baton the recordings of musical works of various genres entered the collection of the Belarusian radio fund. In 2004/2005 Aleh Lessoun worked with the Rostov State Musical Theatre conducting the performances of The Barber of Seville by Gioachino Rossini and Eugene Onegin by Pyotr Tchaikovsky. From 2006 to 2008, maestro served as a conductor and acting principal conductor of the State Chamber Music Theatre "The St. Petersburg Chamber Opera” under the artistic direction of the People's Artist of Russia Yuri Alexandrov, where as musical director he prepared the premieres of Lucia di Lammermoor by Gaetano Donizetti, Sister Angelica and Gianni Schicchi by Giacomo Puccini, The Gamblers and The Little Antiformalistic Paradise by Dmitry Shostakovich. In 2009, Aleh Lessoun was invited to the Franco-American Vocal Academy-FAVA (Périgueux, France) to take part in the production of the operetta Orpheus in the Underworld by Jacques Offenbach .
Operas:
The Barber of Seville by Gioachino Rossini
The Marriage of Figaro and Don Giovanni by Wolfgang Amadeus Mozart
Lucia di Lammermoor by Gaetano Donizetti
Il Trovatore, Traviata, Nabucco and Rigoletto by Giuseppe Verdi
Carmen by Georges Bizet
Iolanta and Eugene Onegin by Pyotr Tchaikovsky
Pagliacci by Rugero Leoncavallo
Turandot, Tosca, Gianni Schicchi, Sister Angelica and Madama Butterfly by Giacomo Puccini
Tannhäuser, Parsifal and Der fliegende Holländer by Richard Wagner
Ballets:
La Esmeralda by Cesare Pugni
La Fille mal gardée by Louis Herold
Giselle by Adolphe Adam
Don Quixote by Ludwig Minkus
A Midsummer Night's Dream by Felix Mendelssohn
Swan Lake and The Nutcracker by Pyotr Tchaikovsky
Bolero by Maurice Ravel
The Firebird and Le baiser de la fée by Igor Stravinsky
Carmen Suite by Georges Bizet –Rodion Shchedrin
Carmina Burana by Carl Orff
Passions (Rogneda) by Andrey Mdivani
Since 2010, Aleh Lessoun has been musical assistant at Tiroler Festspille Erl in Austria.
From 2011 to 2013, he was principal conductor of the Belarusian State Academic Musical Theatre and in the year of 2013 he took the position of a conductor at the National Academic Bolshoi Opera and Ballet Theatre of the Republic of Belarus.
During his tenure at the Belarusian Bolshoi Aleh Lessoun has prepared and conducted the premieres of the following operas and ballets: the ballet Laurencia by Alexander Krein, one-act ballet Who am I? to the music by Sergey Kortes, the opera Doctor Ouchithurts by Marina Morozova, the ballet The Little Prince to music by Eugene Glebov, the opera The Marriage of Figaro by Amadeus Mozart.