Hello.
In the case of the rhythm dance, there were no hand movements in the source material and it didn't seem to be polished enough to my standards, but I chose it because I could feel the passion in the movements.
And I baked some relatively natural looking hand movements into the animations.
Motions are in Anim -> Animations -> Kohai -> Gestures Conversation / Rhythm Dance
Let me know If you find any issues or parts that must be improved.
DL : Gestures_Conversation_for_CharaStudio_v0.9.0.zipmod
Rhythm_Dance_Part1_for_CharaStudio_v0.9.0.zipmod
Thank you.