Tech and live music

I’m wondering what members think about this (from an AP article covering this year's SXSW Tech festival):

TECH AND MUSIC

As always, tech and music intermingled during the festival. When the indie-rock band Great Caesar played at a popular local bar, it was no ordinary SXSW show. Its sponsor, Doppler, was testing ear buds designed to augment live music. Via an app, ear bud wearers could adjust the bass they could hear, for example, or create an echo effect. They could also choose pre-mixed filters that mimic the sound effects of different places, such as a small studio or Carnegie Hall.

"I like having some kind of control over what I’m listening to," said Marshall Heinz, a law student in Austin who tried out the device. "I make music, so to interact with people who are way better musicians than me is pretty cool."