Hristo Vitchev deserves to be heard. His website describes him as an impressionistic, modern jazz guitarist. However, one listen of his new CD In Search of Wonders, you are struck by the timelessness of Mr. Vitchev's music. The guitarist fronts a tightly structured quartet that features him on guitar, Jasnam Daya Singh on piano, Dan Robbins on bass and Mike Shannon on the drums. In real life, they are four different individuals but, as a band, they are one, as Mr. Vitchev will be the first to tell you.