I made the following changes

4x Brainstorm replaced with 4x Peer Through Depths

4x Burnished Hart replaced with 4x Kodama's Reach

4x Seething Song replaced with 4x Desperate Ritual

Mana base adjusted a bit

Hopefully by using a bunch of arcane stuff I can get more mana out of Desperate Ritual than I would have out of Seething Song.

I wasn't getting good use out of Brainstorm. I thought I would use it to stack my deck for Epic Experiment, but in practice I wound up holding the forks in hand and using the extra mana to cast a bigger EE. So, perhaps it better to sift deeper into the deck instead.