By Matthew Dobie Special to The Post and Courier
At 75 years old, singer-songwriter David Crosby is in the midst of a prolific burst of creativity.
In 2014, he released "Croz," his first solo album in more than 20 years. In 2016, he released another, entitled "Lighthouse." And later this year, he’ll release "Sky Trails," his third solo album in four years. “I’m extremely happy,” says Crosby. “So that has a big thing to do with my output. If I’m feeling really good, all of a sudden my output doubles or triples.”