Alternative plural or variant spelling of celestas; multiple celestial instruments, or an alternative form of the word in French.
Either a variant plural of 'celesta' or a French plural form ('célestes'), depending on context. The '-es' ending follows French pluralization conventions while also appearing in some English usage.
Languages get tangled when musical instruments cross borders—'celestes' could be French or English depending on who's speaking, making it one of those words that reveals how music's international world doesn't care about grammar rules.
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