Mycielski began composing his violin preludes, dedicated to Nadia Boulanger, in the summer of 1930 in Wiśniowa and completed them in October that year in Paris. 

The successive parts have neither titles nor tempo definitions. The composer only introduces Roman numerals as well as metronomic markings suggesting a gradual change of tempo: I. crotchet = ca 60; II. crotchet = ca 104; III. crotchet = ca 112. This is intensified by the build-up of the dynamic level and the presentation in successive preludes of increasingly expressive themes. A texture highlighting the equality of the two instruments, dialogue, shifting of themes between the instruments – all these elements testify to Mycielski’s growing mastery of the compositional technique.