Have you been watching Essential Theory section?
We have been updating those videos.
We have updated with all new lessons from ET1 to ET15 so far.
Especially this lesson. Diatonic triads with 1st inversion. (3 5 R)
Very very useful so please watch this video.
https://tomovhxtv.vhx.tv/music-theory-i/videos/et15-diatonic-triads-1st-inversion
Matt wrote really great review on ET14 Diatonic Triads with Root Position.
https://tomovhxtv.vhx.tv/forums/general/72583-et-14-diatonic-triads
Please check this thread too.
Thank you everyone!
Let me know your feedback on ES15.
Thank you.
Tomo