Complex sentence: In 1959 the label released "John Langstaff Sings American and English Ballads", featuring her then-current husband singing and Nancy Trowbridge (who later became Langstaff's second wife) on piano.
Split into simpler sentences: In 1959 the label released "John Langstaff Sings American and English Ballads". This had her then-current husband singing and Nancy Trowbridge on piano.