in audio commentary for ep22 horiguchi said that scene (from ~16:56) was done by a young female animator takao could nevertheless rely on a lot and thus gave her important scenes like from ep10 where sawako sings. yamada added that she did oden-ya scene too, but how much? so keep in mind post #124312.
anyway, from overlapping staff it is whether kamoi or fumie okano, so i think it's probably kamoi