Between 2001 & 2007, Concept linked up with producer/mc Undefined to form the group Crisis Center.

Concept was also the host of the Nationwide hip hop mixshow, The Mix Chronicles, on Sirius Satellite Radio.

[2] After Heavy Smoke, he released a few EPs with different MCs as well as a number of conceptual beat tapes, including one made completely on one flight from JFK to LAX.

[3] Concept is also one half of the NY rap duo Dirt Disciples with Rome Clientel [4]

All of his promo mixtapes are available free to download THE EXECUTE PODCAST - 2008–Present