[Lingtyp] Default expression for singing ("la la la")

[JOO, Ian [Student]]

Dear all,

In most languages, does the default expression for singing consist of repeated CV syllables with coronal sonorant onset + low vowel nucleus?
In other words, is it mostly la la la, na na na, etc.?
I assume that it's because it’s the least marked syllable with the greatest amplitude?

From Hong Kong,
Ian
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