On November 9th Prosper Women Entrepreneurs Startup Accelerator held their Demo Day in St. Louis. Lincoln’s MusicSpoke co-founder Jennifer Rosenblatt joined this year’s cohort after reading an article in SPN. MusicSpoke is an online marketplace for artist-owned sheet music. SPN caught up with Rosenblatt to see how it went. “It’s been a busy few days,” she said. “It was…