‘’String Demons’’ started their World adventure from Athens, as a worthy rival to the top international bands of their genre.

Through their classical instruments, two siblings from Greece, Constantinos and Lydia Boudounis, set the stage on fire in all their shows and offer a unique musical experience capturing the audience’s attention and gaining huge fans wherever they perform.

Classical music meets Heavy Metal, traditional and folk music meet Rock in an unpredictable performance that excites the audience featuring compositions from Iron Maiden, Queen, Chatzidakis, Bach, Vivaldi, Theodorakis, Tsitsanis etc. that we’ve listened to a thousand times before but never by the “String Demons”. Drums, other percussion and electric instruments fight against classical instruments creating a vivid impact and producing a unique Dionysian atmosphere strongly influenced by Christian hymns and Byzantine rhythms.

The cellist Constantinos Boudounis and the violinist Lydia Boudounis, a.k.a. “String Demons”, began working together in March 2014 after a long period of studying, competition awards, music recordings and concerts in several music halls and stages throughout Greece (Megaron - The Athens and Thessaloniki Concert Halls, The Odeon of Herodes Atticus, Parnassos Literary Society, Municipal Theaters etc.) and abroad (USA, France, Austria, United Kingdom, Italy, Turkey).

Studying under Renato Ripo and Dimitri Semsi, respectively, they both got their diplomas with top marks and the “A” award, while having also attended seminars and master classes under Misha Maisky, Sergei Kravtsenko, Natalia Gutman, Raphael Oleg and Antonio Meneses. They have both been honored with awards and medals in competitions and have performed as solo artists in CD's such as “Evangelos Boudounis: 100 Guitars at the Herodeon”, “Historia de un Amor”, “Live at the Megaron”, “The Athens Concert Hall”. Also, they have many times recorded their concerts for EBU and the Greek Radio.

Since 2004, they have been members of the large guitar soloists ensemble of Evangelos Boudounis “100 guitars”, and since 2014 they have been performing live on stages such as the Megaron Concert Hall, the Badminton Theater, the unique Odeon of Herodes Atticus and other places accompanied by this impressive ensemble of 100 guitars.



February 6th, 2016


Pallas Theatre

Announced Speakers


  • 08:30


  • 10:30


    Music Box

    Dancing group

  • 10:50

    Alexandra Antonopoulou

    Designer, Senior Lecturer of Design

  • 11:10

    Claire Burge

    Psychologist, Productivity speaker, Photographer

  • 11:30

    Mark Haidar

    Entrepreneur, Founder and CEO at Vinli and Founder &Co-CEO at Dialexa

  • 11:50

    Ingrid Stange

    Economist, Social Entrepreneur, Venture philanthropy innovator

  • 12:10

    Soti Triantafyllou

    Historian, Cold War expert, author, novelist, translator

  • 12:30

    Coffee break

  • 13:20


    Dimitris Mystakidis

    Greek folk (rembetiko) guitar player

  • 13:40

    Guy Goldstein

    Digital strategy advisor, cyberwarfare analyst, author

  • 14:00

    Carl Miller

    Social Media advisor, Research Director at Demos

  • 14:20

    Dimitris Xygalatas

    Εxperimental anthropologist who specializes in the study of ritual behaviour

  • 14:40

    Emmanouil Dermitzakis

    Professor of Genetics

  • 15:00

    George Pittas

    Furniture & interior designer, writer

  • 15:20

    Lunch break

  • 16:50


    Πangea World Music Center

    Multi-cultural artistic expression hub

  • 17:10

    Tasos Frantzolas

    Music/Internet entrepreneur, Sound Designer, founder of Soundsnap.com

  • 17:30

    Aliki Theofilopoulos

    Director, Story Artist, Writer at Walt Disney Television Animation

  • 17:50

    Faramerz Dabhoiwala

    Writer, historian, professor

  • 18:10

    Vaggelis Avgoulas

    Lawyer, Deputy General Secretary of the Panhellenic Association of the Blind

  • 18:30


  • 19:20


    String Demons

    String duo

  • 19:40

    Aegean Team

    Νon-profit organization providing social and medical services

  • 20:00

    Judit Neurink

    Journalist, author, specialist on the Middle East

  • 20:20

    George Prevelakis

    Professor of Geopolitics (European, Balkan and Eastern Mediterranean)

  • 20:40

    Alki Zei

    Children's books author

  • 21:10

    Closing Party

    With Bejeezus and DJ Ledakis


Costeas-Geitonas TEDx Athens 2016 Simulcast

Once again, we are proud to have CGS host this year’s TEDxAthens Simulcast Event. Our partnership, gives everyone a chance to live the experience of a TEDx event in the most educational and fun way, in an environment where creativity and innovation are always encouraged!

The TEDxAthens Simulcast is a great way for the entire family to spend the day. Younger participants will have the opportunity to participate in educational workshops and activities created for all ages and grade levels, organized by the school.

The entrance is free for everyone.
Book your seat
How to get there
Pallas City Link

Pallas Theatre
Voukourestiou 5
Athens 105 64

How to get there


Social partners

Media Partners


Food catalysts


The TEDxAthens Volunteer Program is your opportunity to participate in a world class Conference, which brings people together to share experiences, knowledge and ideas worth spreading! Become a TEDxAthens Volunteer to connect with great people, meet international speakers and have fun! Applications are now closed. Thank you!

The Team


Dedication. Determination. Passion. Hard work. Teamwork. It's dreamwork!

TEDxAthens has gone a long way thanks to a small group of people who ​may have different origins​,​ but share a common vision: make Athens the epicenter of ideas worth spreading globally.

Who are we? Meet our dream team!