This arrangement sits in the key of D at a gentle 93 BPM, which gives you plenty of breathing room to focus on clean chord changes rather than rushing through them.

Your left hand follows a walking bass pattern, so practice that independently first — keep it smooth and steady, almost like a calm heartbeat underneath the melody.

The chord set includes eleven chords, and the ones to watch are the Bb and C, which briefly pull you outside the key of D; let your hand shift early and stay relaxed through those transitions so they don't catch you off guard.

The Asus4 resolving to A is a shape worth drilling on its own because you'll feel it click once your fourth finger learns to lift cleanly.

I'd suggest looping the sections where those out-of-key chords appear at about half tempo until the movement feels automatic, then bring the whole piece up to speed.

The F# chord can also sneak up on you, so map out the fingering before you play through.

Overall, this peaceful, vocal-style melody is a fantastic way to build confidence moving between related and borrowed chords — once these transitions feel natural here, you'll handle them anywhere.