New note block sounds in 2.0?

I was listening to the new OST for the Nameless Anomaly raid ('Staring into The Abyss'), and I noticed something strange. Around the 20 second mark the vanilla bell note block sound can be heard, alongside the normal Wynncraft noteblock sounds. I think another vanilla note block sound can be heard later, but I don't know which one it is.
I believe this is the first time these note blocks are used in wynn.
Perhaps a music update is coming?

(For those who haven't heard the new music it is on Deusphage's youtube channel. I would post it here but I can't post videos yet.)

 

Yes it said in the changelog somewhere there would be 3 new instruments added to TNA raid music.