Heian Jingu Reitaisai(平安神宮 例大祭）
I tried translation of the upper site.
These can be seen also by whom.
Imperial messenger procession
Dancing by a shrine maiden
Dedication of the song by a citizen chorus
(2)Reisai of the next day(例祭翌日祭）16th Apr.
The tea party by selected people(茶会) AM11:00〜PM3:00
Flower arrangement is presented(献花会) AM9:00〜PM3:00
The garden party by a Kou-member( 講 )AM11:00〜PM3:00
The following is a big event.
I think It contains what you described.
Some events are presented(神賑行事)
包丁式（The ceremony using a kitchen knife)
歌舞 （Dancing by a Maiko)
御神楽（Okagura court dance and music)
箏曲 （A performance of a koto)
舞 （Japanese Mai-dance)
舞踊 （Japanese dance)
太鼓 （A performance of a drum)
舞楽 （Bugaku court dance and music)
I hope this is helpful to you.