 As a solo pianist, he premiered many works of his colleagues, as well as of his own.The main body of his musical output consists music for piano duo (like Brazilian Dances, Dances of Masters, Inventions, Moravian Ballades) and piano solo (Preludes, Sonatella, Pianists and Horses, The Moon Suite).Besides being a composer and a performing and recording pianist, Lejsek also served at the music faculties of the Conservatory and Janáček Academy of Music in Brno.