The popular appeal of two voices singing in harmony is evident in many cultures, but especially so in Welsh popular music. Often, the duet grows out of a family unit – sisters, brothers, father and son or mother and daughter – and sometimes, two solo artists come together for a one-off recording, but whatever the reason, when two voices find that they complement each other, it is very often a formula for popular success. From among the wide range of duets featured on this compilation album are some of the most successful names of Welsh pop – Tony ac Aloma, John ac Alun, and Rosalind a Myrddin have all featured on their own TV series. But all of them bring their own special brand of harmony singing to the stage. And this album we know will be well received by all followers of popular and country-style music.