Oft imitated but never equaled, the DJBooth Freestyle Series ran from February 2009 through June 2011. Its 250 total entries were the work of a veritable who’s-who of underground and emerging emcees, including rising stars like Kendrick Lamar, Wiz Khalifa and Mac Miller. Now, it’s back for a second round. The 21st entry in the relaunched series comes courtesy of Connor Evans, a reader fave hailing from Coachella Valley, California. On Tryptophan, the unsigned buzzmaker flexes his lyrical muscles over an original synth-string beat by BHB. Evans is fresh off the April release of his latest digital full-length, So Cal Soul. Click here to stream and/or download the set for free right here in The DJBooth. Fred Lozano provides original artwork to accompany the release.