We built a website that is highly recommended by the Centre of Artistic Education (Centrum Edukacji Artystycznej) in Poland. Despite this, it has more than 1000 visitors every month. The idea of the dodekafonia.pl project is to popularise the works of Polish composers of contemporary music who used the dodecaphonic technique, about which little is said today, although it was commonly used in 20th century music. The project assumes transferring the artistic, popularizing and didactic activity of the project authors to the Internet by creating audio impressions, fun educational materials and short listening quizzes intended for students of music schools and art faculties.