The members of the studio recording are written on the wiki. It was Kohara Haruka, not Nonaka, by the way.
The position is a kenkyuusei position because Team A was 15nin at the time and no one was ever promoted.
Some color coding corrections Itsuka mita umi no soko [spoiler] Sweet & Bitter [spoiler]
Saishuu Bell ga Naru new Team K version [spoiler] Tadaima Renaichuu new Team B version [spoiler] Yume wo shinaseru wake ni ikanai new Team 4...
Doro no Metronome color code [spoiler] Watashi wa Blueberry Pie color code [spoiler]
Te wo Tsunaginagara team song positions for Team H & Team 4 Team H [spoiler] Team 4 [spoiler]
Predictions for NGT shonichi. The stage is B4 [spoiler]
Team M version of B4 [SPOILER]
Doryoku no Shizuku color-code and a romaji correction [SPOILER] Namioto no Orgel color-code [SPOILER]
Ima ga Ichiban color-code [SPOILER] Kireigoto demo ii ja nai ka? color-code [SPOILER] Also, the KII member that does Nakagawa Haruka's...
Aitakatta (Team A version) color-code [SPOILER] Aitakatta (Team B version/SKE48 Team KII version) color-code [SPOILER] Dakedo (Team B...
Color-coding for Kaisoku to Doutai Shiryoku [SPOILER]
Team E 3rd stage "Boku no Taiyou" positions: [spoiler] Team N "Seishun Girls" positions: [spoiler] Team N 4th stage "Koko ni datte tenshi wa...