1
diptongo
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contracted sound;palatalised sound (e.g. Japanese morae with small kana);palatalized sound
e.g. きゃ
拗音（ゃ ゅ ょ）と促音（っ）の出し方も、加えていただけると参考になるかもしれません。
I think it might be useful if you could add how to output the diphthongs (with small ya/yu/yo) and geminate consonants (with small tsu).