So upon trying to search for tracks used in Rigamarole's recent parody "Sponge Bro," I've stumbled across what I believe to be the exact renditions of Grieg's "Morning" & Tchaikovsky's "Waltz of the Flowers," used in "Dokis in Quarantine" & "Dokis Have a Sleepover" respectively.
They're from Youtube's audio library, which comes as no surprise as Preston has used Youtube Library tracks occasionally in his videos.
End of update.
