(Photo courtesy of Alan Williams) “Somewhere There’s a Train” cover art Benjamin Heffner Connector Editor  Dr. Alan Williams, Coordinator of Music Business & Musicianship at UMass Lowell, released his newest single, “Somewhere There’s a Train,” on Friday, Feb. 20, along with an accompanying music video.  Q: What went into the creative process?  A: “Somewhere There’s a Train” is part of a new album coming…