Background: Since the early 1960s, theoretical linguists have moved away from the traditional concept of a phoneme, preferring to consider basic units at a more abstract level, as a component of morphemes; these units can be called morphophonemes, and analysis using this approach is called morphophonology.
Question: When did theoretical linguists turn away traditional phoneme concepts?
Answer:<extra_id_0>.
<extra_id_0> early 1960s<extra_id_1>