On Wednesday the 23rd of March 38 people gathered at the Music Library of Greece to enrich Wikipedia articles with parts of the music collection of the Friends of Music Society. The theme was the traditional music and dance of Thrace and eastern Macedonia. The event was organised by Europeana Sounds and the Friends of Music Society. Manos Kefalas (instructor in a by him founded Wikipedia school in Athens), along with his students, helped prepare the event and gave valuable guidelines and instructions to all the participants. Furthermore Costas Papadimas from the Greek Free/Open Source Software Society gave a speech about Open Source software and Rights Labeling Licences, and helped the participants in Wikipedia editing as well. At the end of the day the participants created 11 new Wikipedia articles and used 34 different audio items to enrich Wikipedia articles 43 times. For example the zurna wind instrument can be heard on the Greek and English Wikipedia thanks to the participants of this edit-a-thon. The event was covered by journalist Aimilios Charbis in an article published in the Greek newspaper Kathimerini.