Apple will announce its first quarter 2010 financial results later today. As it has done in the past, the company also plans to conduct a conference call to discuss its fourth quarter results; the call will begin at 2:00 p.m. PST and will be available as an audio webcast. Bach Technology, a new company made up of some former MP3 developers, has unveiled MusicDNA, a new digital music file format. Similar to Apple’s recent iTunes LP offerings,…