Скотт Рикард задался целью написать самое неблагозвучное музыкальное произведение, лишённое повторов, взяв за основу математическое понятие, известное как массив Костаса. В этом неожиданно увлекательном выступлении он рассказывает о том, какова роль математики в создании красоты и её противоположности.

There are millions of prodigiously gifted musicians of disability around the world, and Charles Hazlewood is determined to give them a platform. Watch the debut performance of the British Paraorchestra.

Inspired by Aung San Suu Kyi's call to action, "If you're feeling helpless, help someone," Morley composed this song. She sings it at TEDxWomen in her gorgeous, warm voice.

What is a mistake? By talking through examples with his improvisational jazz quartet, Stefon Harris walks us to a profound truth: many actions are perceived as mistakes only because we don't react to them appropriately.

Чарльз Лимб проводит кохлеарную имплантацию — вид хирургического вмешательства, лечащий потерю слуха и возвращающий способность слышать речь. Будучи также и музыкантом, Лимб размышляет о том, чего не достаёт таким имплантатам: они пока не позволяют полностью воспринимать музыку (тому есть ошеломляющий пример). На TEDMED Лимб анализирует современное искусство науки и пути его развития.

Conductor Charles Hazlewood talks about the role of trust in musical leadership -- then shows how it works, as he conducts the Scottish Ensemble onstage. He also shares clips from two musical projects: the opera "U-Carmen eKhayelitsha" and the ParaOrchestra.

Can opera be ever-so-slightly sexy? The glorious soprano Danielle de Niese shows how, singing the flirty "Meine Lippen, sie küssen so heiss." Which, translated, means, as you might guess: "I kiss so hot." From Giuditta by Frans Lehár; accompanist: Ingrid Surgenor.

Cellist Maya Beiser plays a gorgeous eight-part modern etude with seven copies of herself, and segues into a meditative music/video hybrid -- using tech to create endless possibilities for transformative sound. Music is Steve Reich's "Cello Counterpoint," with video from Bill Morrison, then David Lang's "World to Come," with video by Irit Batsry.

Musician and inventor Onyx Ashanti demonstrates "beatjazz" -- his music created with two handheld controllers, an iPhone and a mouthpiece, and played with the entire body. At TED's Full Spectrum Auditions, after locking in his beats and loops, he plays a 3-minute song that shares his vision for the future of music.

It's a master class in collaboration as violinist Robert Gupta and cellist Joshua Roman perform Halvorsen's "Passacaglia" for violin and viola. Roman takes the viola part on his Stradivarius cello. It's powerful to watch the two musicians connect moment to moment (and recover from a mid-performance hiccup). The two are both TED Fellows, and their deep connection powers this sparkling duet.