Tim Weed’s new album, “Soul House,” is a testament to the diverse sounds and skills—also the heart—of a man who began as a teenage banjo prodigy in Southern California and landed in West Marin as a seasoned multi-instrumentalist in 2008. In between he traveled to Fiji, New Zealand, Hong Kong, Honduras, Singapore and Hawaii, among other faraway places, and produced over 100 albums. Mr. Weed, whose blue eyes, tanned skin, shock of white hair and…