Toronto’s Die-Rek is teaming up with Sphere of Hip-Hop for this new single for an album that will help benefit the community. “Sound Doctrine” is the second single from the upcoming Soul Design project, an album that will help benefit at-risk youth outreach programs in 15 countries. This project will be dropping next Friday and “Sound Doctrine” is just a taste of what you can expect from it. Stream the boom-bap flavored track after the break.