Which central idea develops over the course of the text? Participants in the Dialtones telesymphony provided information about their cell phones before the concert took place. Participants in the Dialtones telesymphony provided information about their cell phones before the concert took place. The Dialtones telesymphony pioneered a new form of music using the ringtones of cell phones versus traditional instruments. The Dialtones telesymphony pioneered a new form of music using the ringtones of cell phones versus traditional instruments. The creators of the Dialtones telesymphony strung together a random collection of sounds to show how noisy and intrusive ringtones can be. The creators of the Dialtones telesymphony strung together a random collection of sounds to show how noisy and intrusive ringtones can be. The Dialtones telesymphony was broken down into three separate sections and lasted just shy of a half hour.