Including 2 posts of やぁたん待ち singing and performance (accompaniment), There are many posts on nana such as
syozopandaさんの伴奏を片っ端から歌うシリーズ , じゅんたん待ち and ぐっさん待ち
Enjoy やぁたん待ち music such as “PIECES OF A DREAM【コラボ】” and “PIECES OF A DREAM【コラボ】”!