AVA231: It's hard to get Bach’s In dulci jubilo, BWV 608 from Orgelbuchlein up to speed

This question was sent by Robert. He writes: Hi Vidas, ... It's hard to get Bach’s In dulci jubilo, BWV 608 from Orgelbuchlein up to speed .... 3 sharps and some significant contrary motion. Pedal no issue but the left, right hand ... some serious reading there. 😊 Also wondering what concert tempo should be on the beat,.... the half notes. ....... Maybe it helps to figure out the chords progressions in this key. Anyway I would classify this piece ' intermediate to advanced level ..... for me anyway! By the way it really helps as in one of your last videos .... when you play it 1/2 tempo and have the camera covering from the top .... sort of a bird's eye view. As well you can sort of see the pedal motion too. ...... Keep up the great work to both of you. Greeting and blessings from Vancouver/Canada! Robert