Now as I am implementing concerts and tours in my app, I need to browse events by series to get all concerts from a tour, including places and artists.

As you mentioned in #MBS-13963, you would look into this, I assigned you.

The lookup of a series including event, artist and place rels is not enough because it goes not deep enough. The artist and place rels of each returned event-rel are not included in the lookup result. So I need to lookup each tour event one by one.

Another possible solution would be to browse multiple events at once but that seems more complicated as mentioned in the ticket linked above.