Remember before�Block B's�debut, when it was revealed that the members were trained to write over 100 songs to foster their production abilities?�Well, a lot of people were skeptical and thought of it as hype, but as it turns out, they weren't kidding. In addition to leader Zico's 19-track pre-debut mixtape, "ZICO on the Block", netizens have discovered a 21-track pre-debut mixtape by Zico and Kyung, which is just one of the many that seem to be out there. In response to the discovery, Cho PD wrote through his Tumblr, "I got more than 120 tracks that Zico & Kyung did during their training period on my iTunes folder. Numbers keep growing cuz they still work hard day & nite ^^". While it was "ZICO on the Block" that really solidified his position underground, netizens found this mixtape a lot more versatile in style. This certainly adds anticipation to their comeback mini-album next month, since Zico is at the head as producer. The entire mixtape is available for free download here. === < Bored > < Korean Psycho > < Take-Off > Source: Cho Pd's Tumblr