. >>> classical music, let's be honest, has a bit of a reputation, stuffy, but the denver philharmonicrta program that encourages behavioo that's discouraged at most classical music concerts.oncert how the orchestra is breakingbrg some rules. >> one program for you, have a a good one. ♪ >> reporter: this is the momentm in a classical music concert cot when people are normally asked to fine-tune their manners.mann. turn off your mobile devices. >> reporter: the denver philharmonic follows a differenn set of rules.rues. that's because this orchestrarcr has made a minor adjustment.jtmt >> we started this program. pr we have live tweets going out to those who are interested in receiving program notes duringor the device. you'll find out about the musicc you're listening to, about somet of the musicians.usiians. >> reporter: the man behind the tweets, hornell thomas put downn his instrument of choice foroicr another. >> i have an iphone.ipone. >> reporter: the associate conductor with the denver fil, answers questions.uesions. >> it's an extremely hardemely a question to answer.nser. >> rep