The music in Journey is fantastic, evocative, and mature. In this cu-tscene, it's certainly evident, but the best parts of the soundtrack happen in that moment-to-moment gameplay I mentioned before. As you soar, so does the song. Catching a ride on one of Journey's Jellyfish creatures lifts both the strings and the player up into the air.
Despite the fact that you cannot speak to your in-game companions, you'll probably attain more productive communication through the whistles and notes of our robed protagonist. In the video above, you can see how a new companion is instantly attractive and useful.
That first unsteady hello whistle, followed by the sparse notes, and the harp blast at the end are all the dialogue you need. In a later section, my companion and I timed our movements hidden from a large enemy. Would I have bothered to say anything at all if not for this method of communication?
Many games put the toughest boss at the end and leave players unsatisfied. The best, most entertaining gameplay can sometimes come just before the end. Why let the climax start and stop so early? Why not send players off with a huge fanfare?
That's what Journey does, and it's an impactful way to ensure people remember the experience they just had. Notice how I also lose and subsequently reconnect with my friend in the clip above.