Early last month, ReverbNation launched a new music discovery program called “Playlist 7” sponsored by Microsoft Windows. The program showcase emerging artists from the rock, pop, alternative, hip-hop, latin, jazz, and electronica/dance genres. If you’re already a Fan / Friend / Follower of Windows on Facebook, MySpace or Twitter then you already have access to 7 songs of your choice from 600 participating musicians every week when you visit Playlist 7. If you’re not already a Fan / Friend / Follower of Windows, then you can become one instantly on the network of your choice, direct from Playlist 7 website. Once you’ve “connected” to Playlist 7, you’ll be able to check out Current Contenders to sample and can download your choice of any 7 songs. Current Contenders change every week (until the program ends of course), so you will want to keep checking Playlist 7 each week for new downloads. The 7 Featured Artist songs are the most downloaded songs from the prior week – they are also free to download for everyone who is connected.