RIPTON The Ripton Community Coffee House, a nonprofit community concert series, welcomes back blues musician Scott Ainslie at the Ripton Community House Saturday, Nov. 1. Scott Ainslie is a mesmerizing historian and inspired musician who has a deep reverence for the tradition and history of the blues he presents. Using anecdotes from the lives of performers, Ainslie tracks the movement of African musical and cultural ideas across the Atlantic and across the South with visits to the East Coasts ragtime blues, the Mississippi Deltas deep blues, slide guitar, and early music. Ainslies fifth solo C.D., "Thunder's Mouth" is a dark, roots-oriented collection that reflects his long apprenticeship to African and African-American music and culture. The title song comes of split lineage a phrase borrowed from Shakespeare and a setting and imagery inspired by Civil War era slave narratives from the Nashville, Tennessee, area. Ainslie has worked on Broadway and toured Europe for the United States Information Agency. Hes written the best-selling book Robert Johnson: At the Crossroads on Mississippi blues legend Robert Johnson as well as the teaching video, Robert Johnsons Guitar Techniques on Starlicks Videos Master Session series. Ainslie has two popular C.D.s to his credit, Jealous of the Moon and Terraplane, and will soon release a new C.D. of blues-influenced original songs. What distinguishes his work is his fiery guitar picking and slide work and his deep passionate bluesmans growl. His guitar playing is considered by many to be technically perfect, yet it is his feeling for the Delta blues that makes his performances so vivid.