The transition at 1:10 is indeed a bit sudden! I happen to have an affinity for sudden transitions though. Wouldn't it be boering if all music was 100% predictable all the time? I mean, psychologically speaking, we seem to enjoy when we recognize music and can guess what's coming next, so I guess it makes sense. But since I don't tend to write party music, I like being swept away and just floating with the music, wherever it takes me!
I find it quite easy to pick out structural elements here, since there are more than usual in this song. But, then again I know all the chords and the melodies by heart, whereas other listeners would have to listen quite a few times before they get the hang of it.
There is actually a lot of repetition in this song, though the keys change now and then. But the arrangement changes a bit too, from here to there.
1:58 takes you back to the beginning of the theme, and builds up to the more expressive ending.
And there is a refrains played more than once in the middle (with a few variations), with a couple of diffrent bridges (only one of which repeats slightly), and then there's the middle section which had the abrupt transition. Allow me to lay out the entire structure, the way I see it:
0:00 - 0:37 = Intro (which is a segment which repeats more or less the same melody twice)
0:38 - 0:54 = A bridge to the main refrain, although it is also a type of variation of the refrain melody
0:55 - 1:09 = The main refrain, where the second half builds into that abrupt transition
1:10 - 1:25 = A random middle section which is kinda just there, in order to get some rhythmic and arrangement variation (note the left hand which plays something entirely different here). Note that the end of this segment builds into a bridge with the same style as the ending of the last bridge, simply in a different key.
1:26 - 1:33 = Here we welcome back the main refrain, but only for a sec until there is a new buildup for an even bigger refrain.
1:34 - 1:41 = A unique bridge
1:42 - 1:57 = A slight variation of the main refrain, in order to sound a bit more heavy (not metal). The end of the segment transitions back to the intro melody...
1:58 - 2:38 = This is a repeat of the intro, in all its glory, but with a more upbeat arrangement, since the beginning was taking it kind of slowly. The chords and melodies are the same though (the melody gets more varied close to the build up to the grand outro), as is the key.
2:39 - The grand outro
So there ya go :)
I don't think it's the fact that the piece would lack any structure which makes it difficult to analyze. I think it's the fact that there is more structure, which changes quicker than say a piece with a "intro, verse, verse, refrain, verse, verse, bridge, refrain, refrain, outro" formula. Because it's not quite as simple, it takes more mental energy and devotion to pick out all the parts, based on the actual chords and melodies. Especially since there's no song to go along. I just want to to know that I am very aware of precisely how my songs are built up, or I'd have quite a difficult time playing them. Other than that, I tend to use more key changes than most tracks, because I personally just like key changes.
I do agree with your comment about the ritardando at the end. I too realized it sounds rushed, but tbh, I was just lazy and let it be xD
See, I put more energy into the last five notes, which I think sound funny, since they're entirely unconventional (one of them is intentionally out of key, too!).
I have one exam left this coming monday, and then I have to prepare for Xmas! I have a huge extended family, so there's a lot to do. But after Christmas, and before my studies start again, I too should have more time, so I really look forward to talking to you!
Be well, until then ^ ^