Increase in Popularity of Live Musical Performances Expected to Drive Global Multi Course Harps Market: Ken Research Multi course harps are harps with more than one row of strings. Two-row multi course harps are called double or twofold harps. Three-row multi course harps are called triple harps. Furthermore, harps with just one row of strings are known as catchy harps. Every one of these strings can run parallel to each other or… Read More »