In a new press release to their site, Zend teases at some of the results from their Zend Developer Pulse survey. In these results, they share what music developers prefer (according to the survey) for when they're developing.
The survey showed that as much as 86% of developers listen to music while coding. Of the major music genres, 42% of developers said they prefer coding to music of the rock/pop variety.
The results also included the top artists, some "guilty pleasure" choices and some of the least popular artists. The full results of this survey will be coming out in January 2012, giving a "developer perspective" on the current state of the industry, technology in general and their career.