However, these are modern geographical references to a people who share a common Celtic ancestry and consequently, a common musical heritage. The definition is further complicated by the fact that Irish independence has allowed Ireland to promote 'Celtic' music as a specifically Irish product. Often, the term Celtic music is applied to the music of Ireland and Scotland because both lands have produced well-known distinctive styles which actually have genuine commonality and clear mutual influences. These two latter usage patterns may simply be remnants of formerly widespread melodic practices.