Aleksandra began her musical road studying violin and piano. She later turned her attention to singing and eventually graduated with distinction from the Music Academy in Poznan (Poland) in the class of Wojtek Drabowicz and continued as a student of postgraduate studies at the University of Music Franz Liszt in Weimar (Germany).
She now has an established international career as a solo and ensemble singer, working regularly with leading groups and conductors such as Philippe Herreweghe (Collegium Vocale Gent), Jos van Veldhoven (Nederlands Bach Vereiniging), Stephan MacLeod (Gli Angeli Genève), John Duxbury (Cantatio), the Wroclaw Baroque Orchestra, as well as with conductors including Christophe Coin, Václav Luks, Yves Corboz, Andrew Parrott, Ivan Fischer, Giovanni Antonini, Skip Sempé, Daniel Reuss, Alexander Weimann, Christoph Spering, Peter Neumann and Michael Willens.
Aleksandra has been a guest artist at festivals including Musikfest Bremen, Bachwoche Stuttgart, Thüringer Bachwochen, Festival Oude Muziek (Utrecht), Early Music Vancouver, Festival de Saintes, Lumine Voice Festival of Lofoten, Kulturwald Festspiele Bayerischer Wald and Wratislavia Cantans.
Though mainly a specialist in earlier repertoires, Aleksandra also now performs contemporary repertoire with enthusiasm (notable collaborations include projects with the Swiss quartet, Quatuor Sine Nomine).