This is Sample Size, our weekly new music feature with KOSU's Ryan LaCroix and LOOKatOKC pop music columnist Matt Carney.
Today, we look at the new book The Song Machine: Inside the Hit Factory, and play new tunes from emo rockers Modern Baseball and Canadian cowboy Corb Lund.
Follow Matt & Ryan on Twitter at @OKmattcarney and @KOSUryan.