Kinder Rejoins RKM Studios Kinder Rejoins RKM Studios After several years of composing music on his own, Jeff Kinder has rejoined RKM Studios as a Co-owner and Director of Creative Services. During his seven year absence from RKM, Kinder composed and produced music for Turner Network Television, TBS, Cartoon Network, TNT Latin America, and TNT Asia. His work for TNT's NFL and NBA franchises won PROMAX Gold Medallions for Best Promo Music Package on Network Television and Best Music Package and Sound Design on Network Television, respectively. His return is expected to have a great impact on RKM both from a creative and a management standpoint.