The golden age of mobile sound: how thirty-second clips became a music format, a business and a cultural phenomenon.

How thirty-second clips became a billion-dollar music format — monophonic beeps, polyphonic hits, truetones and the chart that mea

A snippet that cost nothing to deliver sold for more than a full song. Inside the peculiar business chain of carriers, aggregators

Keypad compositions, chiptune choruses, MP3 truetones and lossless streams — every generation of mobile sound has its own texture.